These downpipes for the improve power, torque, turbo efficiency, and make the engine louder. The Wagner Tuning downpipes flow better than stock and other designs. These are some of the best fitting downpipes we have seen to date. The Wagner DP increases power by eliminating restrictions in the stock pipes. Reducing back pressure makes the turbo more efficient and longer-lasting while minimizing the potential for fault codes and limp modes when on track. With less back pressure the turbo can spool up faster and be more responsive - more boost is available sooner and with less lag.
Notice of Fault Codes/Check Engine Light - Using any Racing downpipe could result in a check engine light and fault codes, even with sport cats. Although we have heard of cases where no check engine light appeared, these Racing downpipes are not designed to meet emissions testing and regulations. Race software that is specific to your mods is strongly advised to better adapt your car to a racing environment, keep the fault codes from appearing, optimize power gains, and improve general drivability. Our Epic Motorsports Race software is strongly encouraged to meet all of your tuning goals.
Notice of Emissions Non-Compliance - Removing, disabling, or altering emissions equipment on a pollution-controlled road vehicle is illegal. Installing devices or software that trick, disable, or modify emissions controls and monitors on a pollution-controlled road vehicle is also illegal. This product is sold only for racing, competition, track, hobby, or other off-road use. It's use is prohibited in any motor vehicle that is subject to emissions inspection or control. Legal in California only for racing vehicles that may never be used, or registered or licensed for use, upon a highway.
Downpipes not permitted to ship within california state lines
ECU will need to be coded to avoid engine management light errors.
This item can only be used in a competition racing vehicle that is not driven on public roads, under california state law it is not legal for use in any other motor vehicle
- Improve power, torque, turbo efficiency
- Make the engine louder
- Increases power
- Reducing back pressure
- Makes the turbo more efficient and longer-lasting
- Notice of Fault Codes and Check Engine Light
- Notice of Emissions Non-Compliance.
Vehicle Fitment Chart:
|335i / 335is
Images are for representation purpose only and may differ depending on application