Member, Sport: On DSC: Off
Join Date: Jul 2010
Location: Houston, TX
Thanked 29 Times in 25 Posts
i have the agency headers with cats. It has given the car a growl mixed with the note that to me is still pleasant and not trucky like the Viper. I still have my original cross pipe and Dinan cans.
If you are looking for performance, gut the cats or get headers without cats. headers will change the exhaust note a bit. The installation of the Agency was very difficult according to my installer, due to hole locations and accessibility. it is still a beautiful piece otherwise.
2007 Black Sapphire, Sepang interior, all options except ventilated seats.
Dinan Exhaust, Agency Power Cat Headers, ESS VT2, H&R springs, StopTech BBK
20" BBS CH-R, 295/30/20 PSS on rear
V1 hardwired, BMWCCA Member# 444949