Well here is one for you guys to help me with. There is a local exhaust shop that could put a new exhaust sytem on my focus with a borla muffler for about $225 installed. I could also buy the actual borla system and install it myself which would run about $400. So would there be any difference betwee the exhaust shop and Borlas actual system like maybe a loss fo power or such. The exhaut shop I have already dealt with... they put flowmasters on my mustang and did an excellent job. To give you an idea the guys that work at the shop and own it are all mennonites which means the work is of real quality and craftsmenship. So what do you all think?? thanks for the help!!