I should say "Sounded like crap" I got rid of it, It was just a stander Camaro Style 2.5 inch flowmaster. It had a nice idle but anything above 2000 sounded like poop.
Hey I will sell ya borla (camaro style muffler, identical to the pic of the flowmaster ya put up cepit borla brand) w/ borla sounds lol. for $60 plus shipping when i re-do my exhaust next week. If you haven't bought any muffler yet.
its 2.5" in and dual 2.5" out. Its the Borla XP Pro model (something like that its been a while since i got it) You'll just need to get the pipes made/bent.
I got magnaflow now.. lol on my 4th exhaust system. My first was SLP, then Dynomax, then Borla. hahaah Damn I switch alot.
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I dont have an alero no more...