Exhaust and cat size
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Joined: Sep 2002
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Exhaust and cat size
I bought 3" Flowmaster American thunder catback " and i was wondering if it will hook straight up to my cat or do i have to buy and adapter or something to make it fit. I have a 91 Z 305tpi with one cat.
Junior Member
Joined: Aug 2002
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From: Bullhead City, AZ
Car: 91 Z28
Engine: 305 TPI
Transmission: 5 speed
Axle/Gears: 3.42's
You probably wont have to weld it to the cat, should bolt right up. Should probably weld all the other connections. I have the same cat back on my car.
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