what header,cats and y pipe should i buy for my 2000 z28 i want to buy slp loadmouth for it i have american thunder flowmasters on right now i want it to sound good

 

I recommend a search as this quesiton has been answered many times. There is no BEST exhaust, with that said DO NOT get headers and an slp loudmouth it will be very loud and raspy. If you do lt's with cats or not Id recommend catless if you dont have emissions, then I'd look into a hooker catback or a magnaflow.

 

I run a LM1 w/ cats and its fine, if you plan on running no cats I would go w/ a magnaflow catback...as for the headers theres a ton of LT's out there for an LS1...do some research. Alot of guys go pacesetter before there pretty cheap.