November 27, 2020 · Instagram ·. Some nice B58 dyno numbers from one of our customers, comparing all maps running a downpipe and E30 fuel on his M140i. The difference between ST1 and 2 would be a bit bigger if the car had been measured without DP on ST1 and also the base number would be slightly lower without DP but still great results.Mar 12, 2020 · Power approaching 400whp on a pretty conservative tune is impressive to say the least. B58 MHD Stage 2 HP Gains & Mods. Mods Recommended: Catless DP + Intake. Stage 2 B58 tunes provide a respectable bump above stage 1 performance. It is highly recommended to install a catless downpipe or high flow catted downpipe prior to stage 2 MHD tunes. 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. 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 ...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. 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 ... 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.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.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... 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!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 removalThe 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! 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.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.Now your free-flow downpipe is forcing the engine to work in emergency mode which actually leads to reduction of power output and increase of fuel consumption. The problem is most likely stemming from the O2 sensors. Eliminating the cat creates less backpressure in turn creating more ponies but allowing a higher rate of dirty exhaust to glaze ...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. Our downpipe features a full 4.5″ stainless steel design as well as a CNC 304 grade stainless steel flange that offers a smooth transition from the turbo to the mid pipes. All VRSF downpipes are hand crafted from SS304 grade stainless steel and include a lifetime warranty as well as our “No Hassle” satisfaction guarantee (includes fitment). 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...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 instagramBest 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 ...Wow that is incredible for just a tune and a downpipe. Plus it's on snow tires ... 2016 BMW 340i [0.00] G80 + tune= 3 or lower 0-60. Wild times. Appreciate 0340i downpipe and tune. Bimmerpost ☰ Model Selection. 1. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: 2012 - 2018. E81 / E82 ... Jun 29, 2019 · 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... 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 ... 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.I’m running catless downpipe on my m340. Yes it does smell but only if the windows are down and ur at a red light or parked. When driving u can’t really smell it. But the pops and burbles overweights the smell, making it worth it. Instagram @orange_m340i. Appreciate 1. john!smith. 226.00. Quote. 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. 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 ...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 ...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 ... Stock BMW B58 downpipe can easily handle a moderate tune, but if you plan on gaining more power from your engine remap, less restrictive pipes are going to be necessary. Again, as with the intercooler upgrade, all performance BMW parts (especially engine retrofits) require additional tuning to unlock the full potential of new, more efficient parts.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.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 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 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.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.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. 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.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 ...November 27, 2020 · Instagram ·. Some nice B58 dyno numbers from one of our customers, comparing all maps running a downpipe and E30 fuel on his M140i. The difference between ST1 and 2 would be a bit bigger if the car had been measured without DP on ST1 and also the base number would be slightly lower without DP but still great results.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 ... 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.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.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.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.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 ... 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. 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 ...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 ...Jan 1, 2023 · 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 - SOLD Stock BMW B58 downpipe can easily handle a moderate tune, but if you plan on gaining more power from your engine remap, less restrictive pipes are going to be necessary. Again, as with the intercooler upgrade, all performance BMW parts (especially engine retrofits) require additional tuning to unlock the full potential of new, more efficient parts.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 ...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 ...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 -... F30 BMW 340i With E85 Tune Runs 10s Quarter-Mile Pass. The previous generation of the BMW 3 Series topped with the corner-carving M3, the F80 with a twin-turbo sixer and a DCT. The truth of the ...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 ...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... 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.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 ... 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…. B58 Pure Stage 1 Turbo (450-500whp) Price: $1,195. The Pure stage 1 turbo was developed pretty early on in the world of B58’s. In 2016, they made 481whp and 437wtq with only an intake, JB4, and meth on regular 93 pump gas. These numbers aren’t overly impressive given the stock turbo capabilities as of 2020.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. 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 2021 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, ...340i downpipe and tune. Bimmerpost ☰ Model Selection. 1. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: 2012 - 2018. E81 / E82 ...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.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... 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 ...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...340i downpipe and tune. Bimmerpost ☰ Model Selection. 1. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: 2012 - 2018. E81 / E82 ...Now your free-flow downpipe is forcing the engine to work in emergency mode which actually leads to reduction of power output and increase of fuel consumption. The problem is most likely stemming from the O2 sensors. Eliminating the cat creates less backpressure in turn creating more ponies but allowing a higher rate of dirty exhaust to glaze ...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 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….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.340i downpipe and tune. Bimmerpost ☰ Model Selection. 1. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: 2012 - 2018. E81 / E82 ...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.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.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.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 -...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...340i downpipe and tune. Bimmerpost ☰ Model Selection. 1. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: 2012 - 2018. E81 / E82 ... 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.
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 -... . Longo
Unable to Tune - WGDC Boost Drop (Update: Solved) ... downpipe safe to use? ... 340i lsd. nosam1g. 08-23-2023 12:50 PM by kern417. 14: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... Jan 19, 2021 · F30 BMW 340i With E85 Tune Runs 10s Quarter-Mile Pass. The previous generation of the BMW 3 Series topped with the corner-carving M3, the F80 with a twin-turbo sixer and a DCT. The truth of the ... 340i downpipe and tune. Bimmerpost ☰ Model Selection. 1. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: 2012 - 2018. E81 / E82 ...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...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. 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.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... VRSF B58 Downpipe Upgrade 2016+ BMW M240i, 340i, 440i, 540i, 740i & xDrive. VRSF. Regular price $350.99 Sale price from $299.99 Save $9.99On 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 ... Akrapovic Sport Downpipe with Cat - F22 M240i, F30 340i, F32 440i. Higher flow downpipe with sport catalytic converter. 3037.36. View Product.Hey 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.Jan 19, 2021 · F30 BMW 340i With E85 Tune Runs 10s Quarter-Mile Pass. The previous generation of the BMW 3 Series topped with the corner-carving M3, the F80 with a twin-turbo sixer and a DCT. The truth of the ... 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. 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.Akrapovic Sport Downpipe with Cat - F22 M240i, F30 340i, F32 440i. Higher flow downpipe with sport catalytic converter. 3037.36. View Product.Wow that is incredible for just a tune and a downpipe. Plus it's on snow tires ... 2016 BMW 340i [0.00] G80 + tune= 3 or lower 0-60. Wild times. Appreciate 0Please 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... Power approaching 400whp on a pretty conservative tune is impressive to say the least. B58 MHD Stage 2 HP Gains & Mods. Mods Recommended: Catless DP + Intake. Stage 2 B58 tunes provide a respectable bump above stage 1 performance. It is highly recommended to install a catless downpipe or high flow catted downpipe prior to stage 2 MHD tunes..