Flomaster exhaust?

[91LX2Bfast]

The factory cat-back is rather unrestrictive. You really only need to get the mufflers you want and have them welded in to get the sound that you want. This saves you money anyway.
Bassani is one of the best for quality. A x-pipe adds a disticive sound that I think you wil really enojoy. You should see anywhere from 8-14Hp gain, depending if you choose one with or w/o cats.
FYI- X-pipes were designed to be used with a straight through muffler such as a Dynomax Utra-Flo, Magnaflow, or something like that with no chambers or baffles. Supposedly you may not get "maximum" performance from your combo if you use a chambered muffler like a Flowmaster, but I really don't know how much HP we are talking on a stock engined car. It could only be 1hp at 5800rpms, I don't know. So you have to decide if you want every last HP, or get the sound YOU really want. IMO, I would go with the sound that I would want, but, I thought I would just give you a heads up.