I bought a set of catted downpipes (UltimateRacing Thermal coated) from a forum member. At first I thought I'd want a catted downpipe because of the raspy sound catless downpipes make.
After thinking it over, I think tune and dci is all I need. Intercooler, downpipes, meth are more than I need as a DD.
in US of A. MSRP of these downpipes is close to $1000.
The dents are small and wont affect performance much, 1 or 2 hp.
Additional photos can be seen in link below
Original sellers photos...