What exhaust are you guys running? I'm getting a set of FPA headers along with an X-pipe. The rest will be 2.5" but I'm just undecided on a muffler. It currently has the factory exhaust with a set of flowmaster 40's. On my last hot rod I had spintech pro streets and they definitely sounded different but with my headers they were pretty loud and it was on a chevy 383 car so I don't know how the spintechs would sound on the mach. I'm surprised we don't have a sound clip section? Anyway, what sounds good on these cars? It's only a weekend cruiser so I don't mind it being kind of loud. I just want a awesome old school muscle car sound. Also she's a 4 speed!