Catless Downpipe Set for BMW 335i f20, f21, 335i, ix f30, f31, f34, 435i, ix f32, f33, M235 7/2013-16 with N55 motor.
This downpipe are a full 4.1" (105mm "V" clamp flange diameter) downpipe and are manufactured out of 304 stainless steel with brushed finish. Each pipe includes two O2 sensor bungs so you can transfer your oxygen sensor over to our downpipe allowing the ECU to continue to operate as normal. You have removed the cat so you may need to reprogram the ECU or get a CEL fix to avoid a CEL light on your instrument panel.We recommend you look at your existing downpipe and compare the shape with our photographs. There is a change in mid 2013. Make sure you have 1 inlet and 1 outlet
This straight-through tubing section replaces the heavy and restrictive OEM catalytic converter for maximum power and sound; recommended for track/off-road use only. For left hand drive models only! Features:
- Straight-through design allows for maximum power and sound. Less back pressure improves turbo response and improves horsepower and torque significantly. Typical gains are 15- 20 HP.
- Direct bolt-on replacement for OEM primary catalytic converter. We have left the catalytic style canister in place for possible addition of a sport cat cell model in the future.
- Less thermal load on the turbocharger.
- Reduces turbo lag
M135i f20/f21 7/2013-
BMW M235, ixi f22 7/2013-16
BMW 335i, ix f30 7/2013-16
BMW 335i, ix f31 7/2013-16
BMW 335i, ix f34 7/2013-16
BMW 435i, ix f32 7/2013-16
BMW 435i, ix f33 7/2013-16
These parts are intended for off road or track use only!
This product is sold for off road use only. It is not legal for use on public highways. This product is not for sale or use in California. It is available to our international customers for use within legal limits in their domicile.