Our production downpipes are now on the shelf for the BiTurbo E63 and CLS63. We have also prototyped downpipes for the new 2014 E63S and CLS63S and they should be in production soon.

These are made using stainless steel piping and all flanges are made with stainless steel for a lifetime of durability.

We make these downpipes in an off-road (non-catted) and street-legal (catted) version.

We have these parts on the shelf for immediate delivery so give us a call and we can get you out a set of these downpipes immediately. We also ship all of our products for free.

 

What are the gains with these installed vs factory? also cost for a 2013 CLS63?

 

It obviously is going to depend a lot on the tune in the car but the highest number a tuner has seen with the addition of these downpipes was 38 horsepower. That was with the off-road downpipes. I will say that the catted downpipes make more than the off-road downpipes on a stock vehicle.

I will also PM you the price.