£137.50 (ex VAT)

MTC Motorsport BMW M135i M235i 335i 435i Stainless steel decat downpipe exhaust. Fits basically anything with the N55 engine which was July 2013 and onwards...

This will not fit the 135i from before July 2013. Please ask if you are unsure, anything made before this date and this will NOT fit.

The downpipes are made of T-304 stainless steel unlike all other cheap ones out there.

The flanges are either 10-12mm 304 stainless steel and are laser cut.

The pipes are fabricated in the UK and are very good quality and will flow perfectly.


Will fit the following models:

BMW 1 Series (F20) M 135 i, M 135 i XDrive 235 kW + 240 kW N55 engine, built from 07.2013

BMW 1 Series (F21) M 135 i, M 135 i XDrive, 235 kW N55 engine, built from 07.2013

BMW 2 Series (F22) M 235 i, Coupe, 240 kW N55 engine, built from 07.2013

BMW 2 Series (F23) M 235 i, Cabriolet, 240 kW N55 engine, built from 07.2013

BMW 3 Series (F30) 335 i, 335 iX, Sedan, 225 kW + 240 kW + 250 kW N55 engine, built from 07.2013

BMW 3 Series (F31) 335 i, 335 iX Touring, 225 kW + 240 kW + 250 kW N55 engine, built from 07.2013

BMW 3 Series GT (F34) 335 i, 335 iX, Gran Turismo, 225 kW + 240 kW + 250 kW N55 engine, built from 07.2013

BMW 4 Series (F32) 435 i, 435 iX Coupe, 225 kW + 250 kW N55 engine, built from 07.2013

BMW 4 Series (F33) 435 i, 435 iX, Cabriolet, 225 kW + 250 kW N55 engine, built from 07.2013

BMW 4 Series (F36) 435 i, 435 iX Gran Coupe, 225 kW + 250 kW N55 engine, built from 07.2013

Some advantages of our Decat pipe:

Better throttle response.

Relief of the turbocharger due to lower temperature and less exhaust back pressure.

The cylinder charge is increased, which improves performance. 


Car feels a lot more free and responsive with this installed and has increased power by 10-15BHP on test vehicles.

Not to forget the sound is incredible.

The bends are mandrel bent so keep the maximum shape and internal size when being done.

Professional installation is recommended as some exhausts sit slightly different to others and can be tight.

If you want to buy quality and you want to buy once this is for you.

The pipe will come in brushed stainless and is 100% brand new.

Product Code: MTCWHM8Y30