Jan 29, 2018 · I think it sounds nice with just a downpipe. A full exhaust is a different beast altogether. For power, if you don't plan on tuning then don't waste your time with a downpipe. You're not going to notice much aside from throttle response and a deeper note/louder burbles. If you were going to tune then I would say a downpipe is 100% worth it. The Active Autowerke B58 downpipe for the 340i and 440i helps unleash some of the potential that is restricted by the OEM downpipe. Turbochargers are powered by spent exhaust gases created during the combustion process. The quicker these gases are evacuated, the better. Unfortunately, the factory down pipe in the B58 is quite restrictive, which ... Downpipe is the single biggest hardware mod for the B58. HPFP being second for the 1st gen BMW engines. The TU HPFP are better. The tune obviously makes a big difference, and octane in the fuel is a large factor as well. The B58 loves ethanol and higher octane. 340i downpipe and tune. Bimmerpost ☰ Model Selection. 1. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: 2012 - 2018. E81 / E82 ... Active Autowerke Catted Downpipe for BMW B58 F3X M240I, 340I, 440I 11-062. 888-967-5634 Mon - Fri 8:30 - 5:00 PM PST. Search. Products. Vehicles. Racing. Sim Racing. Nov 21, 2021 · I show you how to install or replace a downpipe on an F chassis BMW with the B58 engine. 1. remove the airbox 2. remove the O2 sensors 3. disconnect the... This M340i’s engine has a ‘Stage 2’ ECU tune from an unspecified aftermarket shop and also sports new downpipes. The upgrades are apparently enough to lift grunt to 520 hp and 490 lb-ft (664 ...Vendor: VRSF. SKU: 10202010. Product Type: Performance. $296.99. $282.14. Downpipe Selection: Catless Race Downpipe. Catless Race Downpipe High Flow Catted Downpipe. Quantity: Buy in monthly payments with Affirm on orders over $50. 2018 BMW 340i vs 2020 BMW M4 CSBMW 340i has a catless downpipe, high pressure fuel pump, and an OTS E40 Tune on an automatic transmission.BMW M4 CS has an up... JB4_B58 is CARB Approved Under Executive Order (EO) No.D-744-4 for all 2016-2018 BMW 230i, 330i, 430i, 530i, 340i, 440i, 740i, M240i, and X1 applications. Wirelessly connect the JB4 to your Bluetooth 4.0 compatible iOS and Android device via the JB4 Mobile connect kit or to your Windows laptop with the BMS data cable.The BMW 340i ECU tune from Gintani includes reprogrammed torque management parameters, smoother engine operations, reprogrammed throttle and response. If applicable it can also raise the RPM Limiter, top speed limit removal, octane ignition timing, optimization of fuel quality, and more power! Clear. $ 299.99. Add to cart. Description. Additional information. Reviews (67) We are proud to introduce our VRSF race & high flow catted downpipe for your B58 M240i, 340i, 440i, 540i, 740i & xDrive variants. These downpipes are THE best bang for the buck mod available for your B58 and they’re available in both race & high flow configurations.All these modern engines use the MAF (Mass Air Flow) sensor to measure the air in to apply the proper amount of fuel. You will eventually reach the fuel cap in a stock tune, but you'd never see it from a DP and exhaust. You really need the tune to unlock the potential of the DP. Recently purchased a 2018 340i and want to do some basic bolt-ons like exhaust, downpipe and tune. But I still have a CPO warranty until October of 2023 and I don't want to void that if I ever need it. What are my options for tuning the car and installing a high-flow catted downpipe while not getting in trouble at the dealership lol. bootmod3 B58 - BMW Fxx Gxx 140i 240i 340i 440i 540i 640i 740i 840i Z4M40i M140i M340i X3 M40i X5 X7 Tune. $595.00 USD. Add to Cart. World's First, Most Advanced and Widely Adopted cloud-based flash tuning platform for the BMW F and G series vehicles. Our latest development includes the addition of the bootmod3 CustomROM features that add ...Also worth mentioning that the M140i stock tune is 250kw/355hp similar to a 340i with the performance Power kit. We did three power runs with tune loaded and all were very consistent around 390whp, best was 391.8whp. Flashed it back to stock while still strapped down and did three runs, once again all very consistent around 300whp.Recently purchased a 2018 340i and want to do some basic bolt-ons like exhaust, downpipe and tune. But I still have a CPO warranty until October of 2023 and I don't want to void that if I ever need it. What are my options for tuning the car and installing a high-flow catted downpipe while not getting in trouble at the dealership lol. You don't need a tune for the downpipe and you don't need a downpipe if you're tuned. That being said, without a tune you'll get CEL and not a huge power gain with the dp. And if you get the tune, you'll get more power but be limited with the stock dp. If you have to choose one over the other, get the tune since you can just run stage 1 until ...JB4_B58 is CARB Approved Under Executive Order (EO) No.D-744-4 for all 2016-2018 BMW 230i, 330i, 430i, 530i, 340i, 440i, 740i, M240i, and X1 applications. Wirelessly connect the JB4 to your Bluetooth 4.0 compatible iOS and Android device via the JB4 Mobile connect kit or to your Windows laptop with the BMS data cable. 340i downpipe and tune. Bimmerpost ☰ Model Selection. 1. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: 2012 - 2018. E81 / E82 ...Akrapovic Sport Downpipe with Cat - F22 M240i, F30 340i, F32 440i. Higher flow downpipe with sport catalytic converter. 3037.36. View Product. Stage 3+ Pure 800. 510-560HP / 525-550TQ**. 535-585HP / 540-570TQ**. 650-700HP / 650-700TQ**. *Power depends on finely balanced ethanol content, peaking at 25-35% and quickly falling off due to fuel pressure. **Heavily depends on tune aggresion, desired power, transmisison, and optional port injection fuel pump upgrade.The boost level settings of a Stage2 tune are too high for the back pressure generated by the resistance of the stock downpipe. The Stage2 tune tells the turbo to spin faster to a point where that stock back pressure can damage the turbo. A catless downpipe has emissions issues depending on your state's requirements. It also has a gasoline smell. Drives: 2016 M235i. Join Date: Mar 2016. Location: Philadelphia. iTrader: ( 0) FBO and BM3 Stage 2 Tune Results w/ Some Strangeness. Finally got my FBO parts and BM3 tune installed yesterday. The build included... Fabspeed Catted Downpipe. Dinan CAI.Recently purchased a 2018 340i and want to do some basic bolt-ons like exhaust, downpipe and tune. But I still have a CPO warranty until October of 2023 and I don't want to void that if I ever need it. What are my options for tuning the car and installing a high-flow catted downpipe while not getting in trouble at the dealership lol.340i downpipe and tune. Bimmerpost ☰ Model Selection. 1. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: 2012 - 2018. E81 / E82 ...Aug 16, 2018 · Also worth mentioning that the M140i stock tune is 250kw/355hp similar to a 340i with the performance Power kit. We did three power runs with tune loaded and all were very consistent around 390whp, best was 391.8whp. Flashed it back to stock while still strapped down and did three runs, once again all very consistent around 300whp. bootmod3 B58 - BMW Fxx Gxx 140i 240i 340i 440i 540i 640i 740i 840i Z4M40i M140i M340i X3 M40i X5 X7 Tune. $595.00 USD. Add to Cart. World's First, Most Advanced and Widely Adopted cloud-based flash tuning platform for the BMW F and G series vehicles. Our latest development includes the addition of the bootmod3 CustomROM features that add ...Jan 15, 2020 · Dotcalc · #19 · Oct 22, 2021. JNMNL52 said: I have read many posts regarding the MPPSK in various forums and I am seriously considering this B58 performance upgrade, along with JB4 and Dinan Elite V2. MPPSK is the most expensive performance option of the three that I am evaluating. Most MPPSK owners are thrilled with the sound and performance. 340i downpipe and tune. Bimmerpost ☰ Model Selection. 1. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: 2012 - 2018. E81 / E82 ...BMW M340i Specs, Horsepower, 0-60mph, Price. The BMW M340i is an impressive car both on paper and in the real world. A lot of the M340i’s performance can be attributed to the engine that BMW chose for it. The B58B3 3.0L inline 6-cylinder is an engine that has a reputation of being a velvety heathen. Like Satan in a smoking jacket.550 horsepower at the crank is likely obtainable, but that’s just about the max on the stock turbo assuming a 12-15% drivetrain loss. You can end up around 470-500whp with an aggressive tune and all of the proper supporting mods (tune, downpipe, intake, methanol injection, and ideally a small E85 mix). You may consider some cooling mods, too.That’s mighty impressive considering it’s all done with an ECU tune. Then there’s Stage 2 which will develop 475 PS (468 HP) and 680 Nm (501 lb-ft), both kits removing the speed limiter.BigDs340i Discussion starter · #4 · Apr 8, 2016. Yes.. That is my white 340i on the front page of their website. 2016 BMW 340i M Sport with Track Handling Package - JB4 Burger piggyback tune. Best 1/4 mile with JB4: 12.32@ 111.58mph.Best 1/4 mile with JB4: 12.32@ 111.58mph 2014 Audi S4 Prestige with APR Stage II+ ECU Flash and Supercharger Pulley, DSG DL 501 Transmission Tune, APR Intake, APR full RSC exhaust with custom downpipe, APR Cooling Performance Unit Best 1/4 mile = 11.7 at 116 mph 2016 Audi Q5S with APR Stage II ECU Flash 2012 Infinity G37s - sold 2011 BMW M3 ...2018 340i - MHD STG 2+ HPFP ,TU PUMP,MHD-FLEX-FUEL, M-PERF LSD,XHP Stg 2,CSF Heat Exchanger, MPE EXHAUST Mid Pipe BACK, Ross Racing Oil Catch Can, Evo Race Work Downpipe, DAW Inlet, MST Intake, VRSF Chargepipe 2011 335is - SOLD340i downpipe and tune. Bimmerpost ☰ Model Selection. 1. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: 2012 - 2018. E81 / E82 ... The only true significant exhaust power-added is catless downpipes, and this exhaust is just a catback system. The kit’s exhaust can be purchased directly from BMW for $1,700, if you don’t want the more aggressive tune to go with it. MPPSK Dyno Results. On the dyno, a factory 340i pulled 331whp and 325lb-ft. of torque to the wheels.Feb 28, 2016 · Best 1/4 mile with JB4: 12.32@ 111.58mph 2014 Audi S4 Prestige with APR Stage II+ ECU Flash and Supercharger Pulley, DSG DL 501 Transmission Tune, APR Intake, APR full RSC exhaust with custom downpipe, APR Cooling Performance Unit Best 1/4 mile = 11.7 at 116 mph 2016 Audi Q5S with APR Stage II ECU Flash 2012 Infinity G37s - sold 2011 BMW M3 ... 2018 BMW 340i vs 2020 BMW M4 CSBMW 340i has a catless downpipe, high pressure fuel pump, and an OTS E40 Tune on an automatic transmission.BMW M4 CS has an up...The BMW 340i ECU tune from Gintani includes reprogrammed torque management parameters, smoother engine operations, reprogrammed throttle and response. If applicable it can also raise the RPM Limiter, top speed limit removal, octane ignition timing, optimization of fuel quality, and more power! Feb 7, 2020 · that’s why the car vibrates. If you get a downpipe and aftermarket tune you’ll definitely want to remove the cold start function. (cold start is just supposed to head up the catalytic filter in the downpipe, so that’s why it’s commonly removed after catless downpipe installation.)e. Take care, @the340iguy on instagram BigDs340i Discussion starter · #4 · Apr 8, 2016. Yes.. That is my white 340i on the front page of their website. 2016 BMW 340i M Sport with Track Handling Package - JB4 Burger piggyback tune. Best 1/4 mile with JB4: 12.32@ 111.58mph.Mar 18, 2020 · The only true significant exhaust power-added is catless downpipes, and this exhaust is just a catback system. The kit’s exhaust can be purchased directly from BMW for $1,700, if you don’t want the more aggressive tune to go with it. MPPSK Dyno Results. On the dyno, a factory 340i pulled 331whp and 325lb-ft. of torque to the wheels. BMW’s S63 is a seriously powerful engine when tuned. Actually, the S63 M5 and M6 are so powerful it just about maxes the stock DCT with a tune-only. Following a tune, upgraded downpipes are the next best bolt-on to extract more power. Although, this may push the transmission past it’s limits. More on this later….Aug 16, 2018 · Also worth mentioning that the M140i stock tune is 250kw/355hp similar to a 340i with the performance Power kit. We did three power runs with tune loaded and all were very consistent around 390whp, best was 391.8whp. Flashed it back to stock while still strapped down and did three runs, once again all very consistent around 300whp. 2019 Doddge Charger Scat Pack vs 2018 BMW 340iDodge Charger has cat deletes, intake, and a 93 tune.BMW 340i has a catless downpipe, and OTS stage 2 tune on 9... Akrapovic Downpipe With Cat - G20/G21/G22/G23 M340i M440i. A sporty 300 cpsi catalytic converter is integrated into the downpipe. Brand: ES#: 4392793. Mfg#: DP-TY/SS/1. Qty: Availability: Ships in 2 Business Days. 340i downpipe and tune. Bimmerpost ☰ Model Selection. 1. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: 2012 - 2018. E81 / E82 ... I think it sounds nice with just a downpipe. A full exhaust is a different beast altogether. For power, if you don't plan on tuning then don't waste your time with a downpipe. You're not going to notice much aside from throttle response and a deeper note/louder burbles. If you were going to tune then I would say a downpipe is 100% worth it.You don't need a tune for the downpipe and you don't need a downpipe if you're tuned. That being said, without a tune you'll get CEL and not a huge power gain with the dp. And if you get the tune, you'll get more power but be limited with the stock dp. If you have to choose one over the other, get the tune since you can just run stage 1 until ...Mar 28, 2016 · BMW B58. Dinan 340i catback. dinan 340i exhaust. A soundclip of Dinan's 340i exhaust comparing the stock system to the Dinan Free Flow exhaust, with and without the mid-pipe. Expect power gains of about 10-20whp with a high-flow B58 catted downpipe. Whether you’re looking for a catted or catless option VRSF has you covered. The catless downpipe for the F chassis M240i, 340i, 440i, 540i, 640i, and 740i is $299.99 while the high-flow downpipe is $479.99.BMW’s S63 is a seriously powerful engine when tuned. Actually, the S63 M5 and M6 are so powerful it just about maxes the stock DCT with a tune-only. Following a tune, upgraded downpipes are the next best bolt-on to extract more power. Although, this may push the transmission past it’s limits. More on this later….2018 BMW 340i vs 2017 Mercedes AMG C43BMW 340i has a catless downpipe and OTS 93 tune.Mercedes AMG C43 has catless downpipes and an OTS E30 tune.1st race was...Akrapovic Downpipe With Cat - G20/G21/G22/G23 M340i M440i. A sporty 300 cpsi catalytic converter is integrated into the downpipe. Brand: ES#: 4392793. Mfg#: DP-TY/SS/1. Qty: Availability: Ships in 2 Business Days. The cell count isn't really the issue but rather the cat used. Fabspeed which is CEL guaranteed uses a 200cell cat and is sold for $2K. AA is a 400cell cat and is sold for ~$1500. Almost every other catted downpipe on the market is also 200cell but they all throw a code, have no guarantee, but are 75% less than the Fabspeed.The Active Autowerke B58 downpipe for the 340i and 440i helps unleash some of the potential that is restricted by the OEM downpipe. Turbochargers are powered by spent exhaust gases created during the combustion process. The quicker these gases are evacuated, the better. Unfortunately, the factory down pipe in the B58 is quite restrictive, which ... 550 horsepower at the crank is likely obtainable, but that’s just about the max on the stock turbo assuming a 12-15% drivetrain loss. You can end up around 470-500whp with an aggressive tune and all of the proper supporting mods (tune, downpipe, intake, methanol injection, and ideally a small E85 mix). You may consider some cooling mods, too.Downpipe for 340i . ... And if you dont plan to tune the car, you will have a cell. Reply saltylmakids 2018 340i Stage 2 Pure Turbo - 525WHP (Toronto ...Jul 11, 2020 · Drives: M5Comp, E46M3 6MT, 328d, M340i. Join Date: Mar 2013. Location: Loma Linda, CA. iTrader: ( 0) I dynoed mine bone stock on Cali 91 gas and it put down 366whp and 369wtq. Adding 1 can of octane booster took it to 372whp and 385wtq on same dyno without unstrapping the car from the rollers. 2018 BMW 340i vs 2017 Mercedes AMG C43BMW 340i has a catless downpipe and OTS 93 tune.Mercedes AMG C43 has catless downpipes and an OTS E30 tune.1st race was...I think it sounds nice with just a downpipe. A full exhaust is a different beast altogether. For power, if you don't plan on tuning then don't waste your time with a downpipe. You're not going to notice much aside from throttle response and a deeper note/louder burbles. If you were going to tune then I would say a downpipe is 100% worth it.2018 BMW 340i vs 2020 BMW M4 CSBMW 340i has a catless downpipe, high pressure fuel pump, and an OTS E40 Tune on an automatic transmission.BMW M4 CS has an up...Features: NO CEL for catalytic efficiency when using this downpipe. GESI EPA registered high flow and fully OBD2 compliant. Casted upper stainless steel V-Band for precise fitment. 4.50" diameter piping allows for maximum power output. Quicker turbo spool. Rated for 500 to 850 hp applications. Withstands up to 1500 F. All else constant, stage 2 maps will run a couple PSI more than the stage 1 maps. However, a catless downpipe is going to provide a decent chunk of the benefits. Not only does it provide a good bump in power, but a catless downpipe also helps reduce turbo lag. Bm3 Stage 2 Horsepower. 91 octane: 390-410whp. 93 octane: 400-420whp. Race gas: 410 ...Feb 7, 2022 · This M340i’s engine has a ‘Stage 2’ ECU tune from an unspecified aftermarket shop and also sports new downpipes. The upgrades are apparently enough to lift grunt to 520 hp and 490 lb-ft (664 ... Also for the launch control being more aggressive, could I tune the launch control to a point where it’s less than stock? Whenever I try launch control I just spin for 3 seconds, before gripping hard. Thus my launch control is useless right now even on brand new Michelin sport A/S 3+. RWD, running MHD stage 2 with downpipe and intake.Stage 2 (up to 470HP/630NM, up to 500HP on B58TU1) - 91oct/95ron, 93oct/98ron, 95oct/102ron, for cars equipped with high-flow downpipe and no gasoline particulate filter. Stage 2+HPFP (up to 500HP/700NM, GEN1 B58 only) - 93oct/98ron, 95oct/102ron, for cars equipped with high-flow downpipe, upgrade HPFP and no gasoline particulate filter.On any turbocharged vehicle, the downpipe lies within your exhaust system, connecting the turbo exit to the catalytic converter. How easy it is for things to flow down this pipe has a huge impact on your car’s overall achievable horsepower and torque. A typical BMW downpipe will have two 400-cell catalytic converters within the downpipe ... Stage 2 (up to 470HP/630NM, up to 500HP on B58TU1) - 91oct/95ron, 93oct/98ron, 95oct/102ron, for cars equipped with high-flow downpipe and no gasoline particulate filter. Stage 2+HPFP (up to 500HP/700NM, GEN1 B58 only) - 93oct/98ron, 95oct/102ron, for cars equipped with high-flow downpipe, upgrade HPFP and no gasoline particulate filter.All else constant, stage 2 maps will run a couple PSI more than the stage 1 maps. However, a catless downpipe is going to provide a decent chunk of the benefits. Not only does it provide a good bump in power, but a catless downpipe also helps reduce turbo lag. Bm3 Stage 2 Horsepower. 91 octane: 390-410whp. 93 octane: 400-420whp. Race gas: 410 ...Expect power gains of about 10-20whp with a high-flow B58 catted downpipe. Whether you’re looking for a catted or catless option VRSF has you covered. The catless downpipe for the F chassis M240i, 340i, 440i, 540i, 640i, and 740i is $299.99 while the high-flow downpipe is $479.99.Whats going on guys today we installed a catless Downpipe and got astage 2 tune from BM3!! *CRAZY FAST AND LOUD* #bmw #440i #b58=====Follow my Instagram=... 19K views 2 years ago. VRSF Catless downpipe install and tune with Bootmod3 (B58 Engine), enjoy! 340i VRSF Downpipe - https://tinyurl.com/ycnrn79j Bootmod3 Tune -... 340i downpipe and tune. Bimmerpost ☰ Model Selection. 1. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: 2012 - 2018. E81 / E82 ... NYC_340i. Lieutenant . 207. Rep. 547. Posts. Drives: '20 M340i xDrive, '11 X3 28i ... Same reason I'm hesitant on a tune but exhaust wont cause any issues and should ...We're back with a tune install on Sam's 2018 BMW 340i. The results were shocking! Definitely need to throw it on a dyno for a future video.Check out XTR Perf...BMW M340i Downpipe 30whp gain ? Stumbled across this video on youtube, racechip guys says that on stock tune by adding a downpipe their car yielded a 30whp gain, has any had similar experience ? 2020 BMW M340i tuned - Can it keep up with an F82 M4? Dyno & 100-200 | RaceChip Insights - YouTube.Aug 16, 2018 · Also worth mentioning that the M140i stock tune is 250kw/355hp similar to a 340i with the performance Power kit. We did three power runs with tune loaded and all were very consistent around 390whp, best was 391.8whp. Flashed it back to stock while still strapped down and did three runs, once again all very consistent around 300whp.
2021 Mercedes AMG C63 S vs 2018 BMW 340iAMG C63 S has a stage 1 Eurocharged 93 tune.BMW 340i has a catless downpipe, high pressure fuel pump, and a stage 2 M.... Apartments dollar1200 rent
340i downpipe and tune. Bimmerpost ☰ Model Selection. 1. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: 2012 - 2018. E81 / E82 ...The Active Autowerke B58 downpipe for the 340i and 440i helps unleash some of the potential that is restricted by the OEM downpipe. Turbochargers are powered by spent exhaust gases created during the combustion process. The quicker these gases are evacuated, the better. Unfortunately, the factory down pipe in the B58 is quite restrictive, which ... Vendor: VRSF. SKU: 10202010. Product Type: Performance. $296.99. $282.14. Downpipe Selection: Catless Race Downpipe. Catless Race Downpipe High Flow Catted Downpipe. Quantity: Buy in monthly payments with Affirm on orders over $50.Downpipe is the single biggest hardware mod for the B58. HPFP being second for the 1st gen BMW engines. The TU HPFP are better. The tune obviously makes a big difference, and octane in the fuel is a large factor as well. The B58 loves ethanol and higher octane.Vendor: VRSF. SKU: 10202010. Product Type: Performance. $296.99. $282.14. Downpipe Selection: Catless Race Downpipe. Catless Race Downpipe High Flow Catted Downpipe. Quantity: Buy in monthly payments with Affirm on orders over $50. 2018 340i - MHD STG 2+ HPFP ,TU PUMP,MHD-FLEX-FUEL, M-PERF LSD,XHP Stg 2,CSF Heat Exchanger, MPE EXHAUST Mid Pipe BACK, Ross Racing Oil Catch Can, Evo Race Work Downpipe, DAW Inlet, MST Intake, VRSF Chargepipe 2011 335is - SOLDWhats going on guys today we installed a catless Downpipe and got astage 2 tune from BM3!! *CRAZY FAST AND LOUD* #bmw #440i #b58=====Follow my Instagram=...VRSF B58 Downpipe Upgrade 2016+ BMW M240i, 340i, 440i, 540i, 740i & xDrive. VRSF. Regular price $350.99 Sale price from $299.99 Save $9.99Clear. $ 299.99. Add to cart. Description. Additional information. Reviews (67) We are proud to introduce our VRSF race & high flow catted downpipe for your B58 M240i, 340i, 440i, 540i, 740i & xDrive variants. These downpipes are THE best bang for the buck mod available for your B58 and they’re available in both race & high flow configurations.All else constant, stage 2 maps will run a couple PSI more than the stage 1 maps. However, a catless downpipe is going to provide a decent chunk of the benefits. Not only does it provide a good bump in power, but a catless downpipe also helps reduce turbo lag. Bm3 Stage 2 Horsepower. 91 octane: 390-410whp. 93 octane: 400-420whp. Race gas: 410 ...Downpipe is the single biggest hardware mod for the B58. HPFP being second for the 1st gen BMW engines. The TU HPFP are better. The tune obviously makes a big difference, and octane in the fuel is a large factor as well. The B58 loves ethanol and higher octane. Jan 29, 2018 · I think it sounds nice with just a downpipe. A full exhaust is a different beast altogether. For power, if you don't plan on tuning then don't waste your time with a downpipe. You're not going to notice much aside from throttle response and a deeper note/louder burbles. If you were going to tune then I would say a downpipe is 100% worth it. BMW M340i vs BMW 340iM340i has a catless downpipe, chargepipes, and E50 Tune.F30 340i has an intake and catless downpipe on E50 tune.1st race was from 40 MPH... Aug 16, 2018 · Also worth mentioning that the M140i stock tune is 250kw/355hp similar to a 340i with the performance Power kit. We did three power runs with tune loaded and all were very consistent around 390whp, best was 391.8whp. Flashed it back to stock while still strapped down and did three runs, once again all very consistent around 300whp. Downpipe is the single biggest hardware mod for the B58. HPFP being second for the 1st gen BMW engines. The TU HPFP are better. The tune obviously makes a big difference, and octane in the fuel is a large factor as well. The B58 loves ethanol and higher octane. 340i downpipe and tune. Bimmerpost ☰ Model Selection. 1. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: 2012 - 2018. E81 / E82 ...Feb 7, 2022 · This M340i’s engine has a ‘Stage 2’ ECU tune from an unspecified aftermarket shop and also sports new downpipes. The upgrades are apparently enough to lift grunt to 520 hp and 490 lb-ft (664 ... Vendor: VRSF. SKU: 10202010. Product Type: Performance. $296.99. $282.14. Downpipe Selection: Catless Race Downpipe. Catless Race Downpipe High Flow Catted Downpipe. Quantity: Buy in monthly payments with Affirm on orders over $50..