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Discussion Starter · #1 ·
Hi, i have a 1990 z24 cavalier 3.1L, i have a dynomax muffler on it and that is it for the exaust. I want to improve the sound and performance. If i changed to 2.5" pipe and a certain type of catalytic converter, would that give me a louder sound(but the same type of sound my muffler already gives me). thanks for the help
Kyle
 

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Kyle, just getting a high flow cat and using 2.5 inch piping should move enough air to get the sound you want using the same muffler. If you want that Nascar type sound, then change to a Flowmaster 40 or 50 series. They can be loud and may be loud in your car too so decide on how loud you want. Just dont wake the neighbors. LOL

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Moon, please tell us what all you have in your exaust system. I know about the Magnaflow muffler, but what about the cat. coverter and headers? Do you have headers?
Thanks
 
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