I did a secondary decat on my C63 which added some noise and am wondering if this will work on my E63S? Anyone done this?

I looked at the AWE exhaust but £4300 is just a bit excessive.

I ordered a valve control module already which I need to get fitted by someone more hands on than me so isn't on yet. The shame.

Any other thoughts appreciated.

 

do we have primary and secondary cats or when we go catless downpipes does it get rid of all cats on the car? meow

 

txt me at @miami_benz_club on Instagram. I can help you with all your questions