Please read description for more information about this car.Follow @B58_Raf on InstagramThis 2016 BMW 340i X-Drive has the track package and the following pe... OWNER : @Justanotherm340 Like Comment Subscribe I post DAILY so turn your notifications onDrives: 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.3-5k pulls with the catless downpipe installed. Pretty darn loud, If you ask me. Some WOT videos coming next, until then.. enjoy the sound of the B58, unleas... 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.Best Downpipe For B58. I've heard Wagner and ER are really good. Looking for one that's gonna give me the most aggressive sound for my 340i. Car is completely stock right now, just want to match it with my oem non m performance exhaust with bm3 tune (in near future) and MAYBE a muffler delete (will have to see how the dp and tune sound first ...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...OBD tunes allow customers to simply plug in a cable and upgrade their ECU. We send you an OBD cable and remotely tune the car using remote desktop software called TeamViewer. You will need a Windows 7+ laptop for this process. Tuning for specific octane. Check engine light removal for downpipes (off-road use only) Top speed limiter removalVRSF B58 Downpipe Upgrade 2016+ BMW M240i, 340i, 440i, 540i, 740i & xDrive. VRSF. Regular price $350.99 Sale price from $299.99 Save $9.99 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. 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 ...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. 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. Bmw 340i X drive 2018 New orange sunset, Manual transmission, M performance I & II, M performance front lip, side extension rear diffuser, tinted windows. : SOLD Back in old N55 love! Bmw 335 EBII M performance edition : ER Downpipes, VRSF Chargepipe, VRSF HD 6.5 Intercooler, BM3 Stage 2 93 octane, MPPSK, H&R SpringDownpipe 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 ...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... More About Performance Downpipes. The downpipe carries exhaust gas from the hot side of your turbo to the rest of the exhaust system. Replace a faulty catted downpipe with an OEM downpipe or upgrade for more performance with our selection of aftermarket performance downpipe options. Apr 25, 2020 · 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. Mar 28, 2020 · 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…. 340i downpipe and tune. Bimmerpost ☰ Model Selection. 1. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: 2012 - 2018. E81 / E82 ... Oct 13, 2020 · Drives: 2021 M340i x. Join Date: Feb 2020. Location: Chicago. iTrader: ( 0) JB4 on 2021 M340i. I was able to update the firmware from my S58 JB4 to B58 and put the JB4 on my M340i. It made a decent difference on my X3M. I felt it more going backwards (taking it off and going to stock) vs putting it on. 340i downpipe and tune. Bimmerpost ☰ Model Selection. 1. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: 2012 - 2018. E81 / E82 ... 340i downpipe and tune. Bimmerpost ☰ Model Selection. 1. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: 2012 - 2018. E81 / E82 ... 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.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 ...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 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.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.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. 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. 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….340i downpipe and tune. Bimmerpost ☰ Model Selection. 1. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: 2012 - 2018. E81 / E82 ...1x pick tool. Step 1 Put car on Jack Stands. Step 2remove airbox ofc. Step 3 Remove Under tray cover. STep 4 Remove Oxygen Sensor Wires. This one is a little tricky, unplugging them is easy, just twist the locking part press down and pull out but to get the o2 sensor wire off the plastic wire box cover thingy use a 90 degree pick tool and press ... 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.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... 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.Best Downpipe For B58. I've heard Wagner and ER are really good. Looking for one that's gonna give me the most aggressive sound for my 340i. Car is completely stock right now, just want to match it with my oem non m performance exhaust with bm3 tune (in near future) and MAYBE a muffler delete (will have to see how the dp and tune sound first ...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 ...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….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 -... 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 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.JB4 Plug and play tune Bmw 340i B58. Installing the downpipe requires an adjustment of the ECU map. For this we have selected a reliable and professional partner, which perfectly matches our downpipes, to solve the problem. A plug and play additional control unit available for BMW with turbocharged engines.Performance Downpipe for B58 240i/340i/440i Decor. $ 400.00. Qty. Add to Cart. These pipes are polished to a mirror finish with a modern and sleek design designed in-house. Included are two seamless wall mounting brackets. Making the perfect decor for your home or garage.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 ...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... 1x pick tool. Step 1 Put car on Jack Stands. Step 2remove airbox ofc. Step 3 Remove Under tray cover. STep 4 Remove Oxygen Sensor Wires. This one is a little tricky, unplugging them is easy, just twist the locking part press down and pull out but to get the o2 sensor wire off the plastic wire box cover thingy use a 90 degree pick tool and press ...VRSF B58 Downpipe Upgrade 2017 – 2022 BMW X3 M40iX G01 & X4 M40iX G02. SKU: N/A. 4.8 out of 5 based on 5 customer ratings. ( 5 customer reviews) From: $ 299.99. Heat Shield ETA 10/1/2023. Downpipe Selection. Choose an option Track Limited Racing Downpipes High Flow Catted Downpipe. Surface Finish.Please read description for more information about this car.Follow @B58_Raf on InstagramThis 2016 BMW 340i X-Drive has the track package and the following pe...Hey guys I recently put in a VRSF catless downpipe on my 340i which I had already done a dual resonator delete on. ( I totally effed up by doing it that order but I originally didn't plan on going catless or tuning but changed my mind). Now that I have both things done the car is really loud but it's a bit too raspy sounding with valves open ...3-5k pulls with the catless downpipe installed. Pretty darn loud, If you ask me. Some WOT videos coming next, until then.. enjoy the sound of the B58, unleas... 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.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. Bmw 340i X drive 2018 New orange sunset, Manual transmission, M performance I & II, M performance front lip, side extension rear diffuser, tinted windows. : SOLD Back in old N55 love! Bmw 335 EBII M performance edition : ER Downpipes, VRSF Chargepipe, VRSF HD 6.5 Intercooler, BM3 Stage 2 93 octane, MPPSK, H&R Spring2021 Porsche 911 Carrera S vs 2018 BMW 340iPorsche Carrera S is 100% stock on the PDK transmission.BMW 340i has a catless downpipe, high pressure fuel pump, ...VRSF B58 Downpipe Upgrade 2016+ BMW M240i, 340i, 440i, 540i, 740i & xDrive. VRSF. Regular price $350.99 Sale price from $299.99 Save $9.99Hey guys i have a 16' 340i XDrive with Agency Power Intake and ER Downpipe and custom E50 tune with BM3 i took my car to the strip with only one revision done on the tune and my fastest time was 11.92 @117mph curious what other 340i's are doing with similar setups.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... 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.I just put my stock downpipe on for my annual emissions and the dealership visit. Can't wait to get the catless dp back on. I miss the sound to much. Once you do the downpipe swap, the second time only take about an hour to do. Having said that, I'd get a tune also and take advantage of that downpipe running map5.Best Downpipe For B58. I've heard Wagner and ER are really good. Looking for one that's gonna give me the most aggressive sound for my 340i. Car is completely stock right now, just want to match it with my oem non m performance exhaust with bm3 tune (in near future) and MAYBE a muffler delete (will have to see how the dp and tune sound first ...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 ...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 ...Bmw 340i X drive 2018 New orange sunset, Manual transmission, M performance I & II, M performance front lip, side extension rear diffuser, tinted windows. : SOLD Back in old N55 love! Bmw 335 EBII M performance edition : ER Downpipes, VRSF Chargepipe, VRSF HD 6.5 Intercooler, BM3 Stage 2 93 octane, MPPSK, H&R SpringNYC_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 ...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.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... There was video posted of an M340xi with a bench flash by a local tuner that tunes all cars (don't know dyno numbers - but I assume that Mission Performance / MHD / PTF are at or above the same level) and results were: on snow tires but dry pavement. had a downpipe (don't know catted or not) 0-60 in 3.45. 1/4 in 11.54.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. 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... 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. 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.Reviews (15) We are proud to introduce our VRSF race & catted downpipe for your G20 B58 M340i & xDrive variants. This downpipe is THE best bang for the buck mod available. This downpipe is available in both race & catted configuration.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 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 ... 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... Unable to Tune - WGDC Boost Drop (Update: Solved) ... downpipe safe to use? ... 340i lsd. nosam1g. 08-23-2023 12:50 PM by kern417. 14:Unable to Tune - WGDC Boost Drop (Update: Solved) ... downpipe safe to use? ... 340i lsd. nosam1g. 08-23-2023 12:50 PM by kern417. 14:Unable to Tune - WGDC Boost Drop (Update: Solved) ... downpipe safe to use? ... 340i lsd. nosam1g. 08-23-2023 12:50 PM by kern417. 14: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 .... Epoxy paint for bathtub lowe
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.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. BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > B58 Turbo Engine / Drivetrain / Exhaust Modifications > Dinan + midpipes + downpipe? Google Search Search Forums VRSF B58 Downpipe Upgrade 2016+ BMW M240i, 340i, 440i, 540i, 740i & xDrive. VRSF. Regular price $350.99 Sale price from $299.99 Save $9.99 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. 2020 M340i Stock Dyno Number. Those who have been following us on Instagram saw the latest updates we have been posting regarding the support for G20 chassis. We will have a completely different thread started when it comes to flash/tune information for the M340i later on today, but for now, I'm posting the first official Dyno results in stock ...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=... May 5, 2022 · 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. 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 instagram2020 M340i Stock Dyno Number. Those who have been following us on Instagram saw the latest updates we have been posting regarding the support for G20 chassis. We will have a completely different thread started when it comes to flash/tune information for the M340i later on today, but for now, I'm posting the first official Dyno results in stock ...340i downpipe and tune. Bimmerpost ☰ Model Selection. 1. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: 2012 - 2018. E81 / E82 ...JB4 Plug and play tune Bmw 340i B58. Installing the downpipe requires an adjustment of the ECU map. For this we have selected a reliable and professional partner, which perfectly matches our downpipes, to solve the problem. A plug and play additional control unit available for BMW with turbocharged engines.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. 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... .