top of page
BMW 335I N55 DECAT DOWNPIPE E90 E91 E92 E93 2011-2012

BMW 335I N55 DECAT DOWNPIPE E90 E91 E92 E93 2011-2012


RDM Performance BMW 135i 335i Stainless Steel Decat Downpipe Exhaust

This decat will fit early E Chassis N55 engines from 2011-2012.

The BMW 335i downpipe is machined from T304 high-grade stainless steel and are tig welded in house

The decat is fabricated in the UK and the flanges are laser cut between 10-12mm

Sharper throttle response due to faster spool of the turbo

Noticeable power gains and a much more aggressive exhaust note which sounds truly amazing

Produces lower temperatures and less exhaust backpressure due to the relief of the turbocharger. Also, the cylinder charge is increased

There is also a substantial weight saving in comparison to the factory catalytic converter

Mandrel-bent for better gas flow and maximum internal size to ensure ultimate performance without the loss of mid-range torque.

This decat will fit the following models:

BMW 1 Series E82 E88 - 135i N55 Engine 2011-2012

BMW 3 Series E90 E91 E92 E93 - 335i N55 Engine 2011-2012

We have tested this product and found increases of 12-17bhp.

Professional installation is recommended as some exhausts sit slightly different from others and can be tight although the feedback we have received from this product is that it is very easy to fit.

We also recommend purchasing a Lambda Sensor Spacer(s) to prevent the engine light coming on in most cases. Tunes from MHD tuning will mask this.

This product comes with lifetime warranty.

bottom of page