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E92 Turner Motorsport Performance Exhausts

E92 Turner Motorsport Performance Exhausts Turner Motorsport has been tuning BMWs since 1993 and exhaust upgrades for BMW are one of our favorite modifications. Performance mufflers, headers, resonator-delete, muffler-delete, race exhaust, and other exhaust upgrades have all been a part of our tuning outline since the beginning. Upgraded exhausts have multiple benefits: better sound, lighter weight, and power and torque gains. Although we sell multiple exhaust product lines (Borla, Corsa, Supersprint, Akrapovic, and others) there are times when we desire something unique and different. These exhausts are our own design with concept and engineering done by our own designers and staff and then trial-tested on our project and employee cars to ensure our design objectives are met.
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Factory downpipes and their catalysts are a choke point for exhaust gases. This restriction slows turbocharger spool and reduces efficiency, and has a significant impact on power. When modifying their N54, most enthusiasts quickly find OEM downpipes offer insufficient performance as power levels are increased, resulting in disappointing results from other modifications. While some find catless downpipes to be the answer, their benefits are increasingly failing to outweigh the downsides when used on the street. Exhaust volume is increased (combined with a full exhaust may be too much for sensitive ears), check engine lights are frequently illuminated, and emissions are greatly increased (a problem for the environment and in passing emissions testing).

Turner engineers designed downpipes that met a happy compromise - excellent flow with high performance 48-state legal catalytic converters. By utilizing cats, these downpipes offer much lower emissions than catless products (and in many cases, no check engine light), with little sacrifice to performance versus their catless counterparts. These high-flow units feature a 3" inlet, followed by a series of smooth radius bends and efficient catalyst, exits as a 2.5" to retain compatibility with popular cat-back exhausts (as well as factory exhaust piping).

We confirmed power and efficiency improvements are present on both a stock tune with even greater power to be found versus factory downpipes while utilizing a simple ECU tune. These gains were confirmed on our in-house Mustang AWD-500 dynamometer while running an off-the-shelf (no tuning trickery in these numbers) Cobb Stage 1 tune:

Stock downpipes wheel horsepower: 314hp @ 5700rpm
Stock downpipes wheel torque: 386ft/lb @ 4000rpm

Turner downpipe wheel horsepower: 334hp @ 6000rpm
Turner downpipe wheel torque: 390ft/lb @ 4100rpm

Max gains:
36hp
 @ 6500rpm
23ft/lb @ 6000rpm

Product features:

  • Large diameter 3" tubing and 200 cell high-flow catalytic converters - significantly reducing flow restriction found on factory downpipes
  • 304 stainless steel with beautiful quality TIG welds
  • Precise fitment - no wrestling to install, listening to clunks, or feeling vibration associated with ill-fitting downpipes
  • Uses factory clamp 11657620508 and factory gaskets 18307553601 (x2) and 18307553603 (x2). Install kit available here


Looking for even more power? Our knowledgeable sales staff is eager to help with your build - give us a call.
 

This item fits the following left-hand-drive BMWs with the N54 engine:
2008-2010 E82 BMW 135i 1M Coupe
2006-2010 E90 BMW 335i 335xi 335i xDrive - Sedan
2007-2010 E92 BMW 335i 335is 335xi 335i xDrive - Coupe
2007-2010 E93 BMW 335i - Convertible

 

Turner Motorsport
Part #: 000932TMS
Price: $870.90 (USD) 
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E9X M3 Turner Motorsport Test Pipes (Cat Delete)

One of the first things we noticed when we got our E90 M3 back in 2008 was the exhaust restriction caused by the placement of the front cats. For space considerations, the factory exhaust setup is crimped in an odd way and the cats are a high cell count. Both combine to rob horsepower. It seemed logical to us that replacing the first set of cats with a set of straight pipes would really open up the breathing and make serious horsepower. Our M3 Test Pipes were designed specifically for race/track use and offer a cost-effective means of removing the very restrictive primary cats. On our Turner M3 and BMW Motorsport M3 GT4 racecars the primary cats and restrictive piping is eliminated. Our M3 cat delete pipes were the first on the market and have proven again and again to make big power on their own or especially when paired with our Stage 2 performance software. (click here)

Our Test Pipes are Made in the USA with strict production tolerances and quality control. We manufacture our pipes with high quality, mandrel-bent stainless steel pipes and laser-cut flanges for an optimum fitment. New gaskets are included. For installation, simply measure and cut the stock front pipes and the Turner Test Pipes slide on. The factory secondary cats remain in place. Your original O2 sensors plug into the Turner Test Pipes. There isn't a better 'bang-for-your-buck' upgrade on your M3 than a set of our Test Pipes.

This part alters or deletes the emissions equipment on your car, and may not meet emissions standards in all states. Because of this, we require a waiver of emissions compliance to be signed and sent in to TMS. You can download the waiver here.


Click here for E9X M3 Test Pipe installation instructions.

This item fits the following BMWs:
2008-2011 E90 BMW M3 - Sedan
2008-2013 E92 BMW M3 - Coupe
2008-2013 E93 BMW M3 - Convertible

Turner Motorsport
Part #: TEN9046MTP
Price: $399.95 (USD) 
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E9X M3 Turner Test Pipes and Software Bundle

CAT DELETE + RACE SOFTWARE PACKAGE
Max HP gain = 48 hp
Max Trq gain = 32 ft-lbs

For a performance upgrade on your E90/E92 M3 there is nothing better than the cat-delete with specialized software. This combination produces over 40whp and 30wft-lbs with no other modifications - a massive gain on an already impressive engine!

Our Race software has been fine-tuned over the years beginning with our IMSA/CTSCC E92 M3 racecars (2011 GS class champions). We modify over 40 different maps in the ECU for such things as fuel and timing maps at part throttle and full throttle, revised torque settings, knock control, VANOS and cam timing, pedal input, top speed limiter, and rev limiters. Additional tuning has been done for the cat delete - prevent limp mode and check engine lights, fault codes for cat delete, and turning off the secondary air pump (to satisfy race series regulations). Turning off the secondary air pump also disables the cold start sequence so your idle and warm-up will be smoother and quieter. A built-in cold start rev limiter safeguards the engine internals until the oil warms up. Not only is there a lot more power at all RPM but the engine is more responsive and smoother!

Our M3 Test Pipes were designed specifically for race/track use and offer a cost-effective means of removing the very restrictive primary cats. On our Turner M3 and BMW Motorsport M3 GT4 racecars the primary cats and restrictive piping is eliminated. Our M3 cat delete pipes were the first on the market and have proven again and again to make big power on their own or especially when paired with our Stage 2 performance software. Our Test Pipes are Made in the USA with strict production tolerances and quality control. We manufacture our pipes with high quality, mandrel-bent stainless steel pipes and laser-cut flanges for an optimum fitment. New gaskets are included. The factory secondary cats remain in place. Your original O2 sensors plug into the Turner Test Pipes.

Our software is installed via the Turner flashing OBD tool. This tool plugs into the OBD socket in the dash and the performance software is installed from a laptop computer connected to the tool. It also works as a fault code scanner to read and reset diagnostic trouble codes and reset adaptations. The software program requires a Windows XP/Vista/7/8/10 laptop and the installation and setup are very easy (click here for instructions). The OBD tool, cable, and files are shipped to you with simple setup instructions. There is no need to remove your ECU and ship it. You can have your M3 flashed in under an hour from the convenience of your garage or driveway!

 

Turner Race Software Options:

Minimum Octane

You can choose between 91 or 93. We have developed tuning for the standard 'high octane' premium fuel found around the country (91 is the maximum available in some areas). Our power and torque gains are advertised with 91. If using 93 we can alter the knock sensor logic to extract more power with the higher grade fuel. Additional race fuel maps are also available, contact us for details.

Rev Limit

On 6-speed manual cars we can set a higher engine rev limit. 8,300 is stock; 8,400 is what was used on the GTS model in Europe; 8,600 is the safest raised rev limit that we have used in our race cars. To make things simple we offer it as either stock 8,300 or raised to 8,600. On DCT cars the higher rev limits are for M shift modes only (manual/paddle shift). The higher revs do not work in full auto D modes. Work is continuing on higher limits for D mode.

Launch Control

Our software can also enable a Launch Control feature. To use it, activate M Dynamic Mode, engage first gear, hold the throttle to the floor (it will only rev to 3,500 RPM), and dump the clutch. Keep your foot to the floor and hang on! You don't have to modulate the clutch and throttle - the engine and DSC modules will handle the launch. We experimented with different launch points and found that 3,500 RPM offers a great combination of tire hook-up and torque output. This is available on manual transmission cars only (DCT has their own built-in launch control).

M Dynamic Mode Steering

We can set the M Dynamic Mode (MDM) steering effort as the standard steering. The MDM steering is heavier and requires more effort when driving at higher speeds. Some owners feel that the standard steering is too light and over-boosted and the MDM steering is a nice change. This does not affect the steering effort, or the other features, of MDM.

240E Update

Our performance and race software is built around a specific version of stock BMW software (version 240E). It was released towards the end of M3 production and includes a number of significant changes over older versions for drivability and torque managment. 240E was such a big step forward that it's considered an upgrade all on its own. No worry if you don't have 240E - we will provide you with a free update before the Turner performance software is installed.

In 2015 BMW released a 241E update. There are minor changes to the software code but the tuning maps and data are all the same as the 240E version so there is no need to update to 241E. If the dealer offers it we recommend that you decline. If you're already on 240E there is no reason to switch to 241E (the tuning maps are the same).

***This part alters or deletes the emissions equipment on your car. Because of this, we require a waiver of emissions compliance to be signed and sent in to TMS. You can download the waiver here.***


Click here for E92 M3 Test Pipe installation instructions.

This package fits the following BMWs:
2008-2011 E90 BMW M3 - Sedan
2008-2013 E92 BMW M3 - Coupe
2008-2013 E93 BMW M3 - Convertible

Turner Motorsport
Part #: TMS224294
Price: $1299.95 (USD) 
$1398.95 (Sale - Save 7%)
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