Maverick1975

Kicherer guy just sent me the link for their new 2 stage exhaust for C63. I think it sounds pretty good (except for perhaps a tiny perceptible 'rattle' post revving - or am i imagining it?) I am getting remote controlled 2 stage Vaeth system installed on Monday and hope it soudns as good as this! Enjoy

http://www.youtube.com/watch?v=aNI_Z7nWFi8

alqamzi

I don't like the rattling sound...

harrower

Maverick, heard the same rattle as you did. Sounds nice but the rattle was noticeable. BTW, I justed booked with Vath a V63Rs upgrade to be done at their factory in late summer. They are booked solid as well as holidays in summer so I had to wait. Have you ever dyno'd yours to see how much of the 580 crank hp you lose to the wheel. I am assuming I will get around 500 to the wheel. This should be fun to go to their shop and see them do their thing. I am also considering some their exterior CF parts as well. They are little expensive, but will take a look when I am there. Good luck with the Stage 2 upgrade.

sflgator

I believe the drivetrain loss is approx. 20% to the rears, so if true, then 580HP to the crank is 464RWHP (464/0.8). My car dyno'd at 417.29RWHP, so assuming the 20% drivetrain loss, my car should have ~ 522HP.

HIRO63

Nice sound but cant wait to hear your Vath system. As soon as you put them on please post video for us.

So how much was Vath system? If its Ok please PM me.