Active AutoWerke


Active Autowerke Section 1 with High Flow Cats - Bmw E46 M3 2001-2006


Combine the Active Autowerke Exhaust Section 1 with a pair of Hi Flow 100 cell metallic catalysts and you have part of a winning combination for your BMW E46 M3.

The BMW Factory Section 1 with RASP like sound Active Autowerke Exhaust Section 1 only comes into play if the E46 M3 already has a performance header already installed. One will experience a high smell of unburnt fuel. (due to the open exhaust w/o any catalysts) and development of a RASPY like sound of which the BMW S54 engine is notorious for with the BMW Stock Section 1 when equipped. This raspy like sound is a matter of engine sound harmonics at a specific RPM range, a sort of resonance that is very loud and noticeable when the engine is revving at or above 4,000 rpm. With the Active Autowerke Exhaust Section 1 installed, the BMW performance gains are about the same as running the factory section 1. However, that's impressive considering the exhaust flow is also being filtered while running through a pair of 100 cell catalysts. The power and performance is still there.


  • Designed and recommended for Off Road Use 
  • Pair of 100 CELL Hi Flow metallic exhaust catalysts included
  • No unburnt fuel like smell
  • NO RASP like sound
  • Brushed Finish for that industrial appeal
  • Constructed from 100% 304 stainless steel 
  • Utilizes factory mounting points for easy bolt-on install
  • Two year warranty with Free Tech support

                  VEHICLE FITMENT:

                  • 2001 Bmw E46 M3
                  • 2002 Bmw E46 M3
                  • 2003 Bmw E46 M3
                  • 2004 Bmw E46 M3
                  • 2005 Bmw E46 M3
                  • 2006 Bmw E46 M3


                            Images are for representation purpose only and may differ depending on application.