CATALYTIC CONVERTERS, PREMUFFLERS AND BYPASS PIPES

At M&K the devil is in the details.  One look at the inlet merge on our pre-muffler variants and you see they are like none other.  Oversized inlets and outlets, smooth merge, free flowing pathway.  Our catalytic converters are the most free flowing on the market.  Add up to 18hp to your 911SC or Carrera and nearly double that figure when tuned to take advantage of the added flow.