American thunder
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Joined: Dec 2001
Posts: 388
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Car: 91 Z28
Engine: 350 TPI
Transmission: 700R4
Bad muffler !!
Right now i have the Force 2 cat back system and the muffler is going bad so i wanna switch to the american thunder what is the part number for the american thunder muffler and the tips i tried looking it up on flowmasters website but the picture is messed up and i can see the part numbers. Or is there any othe muffler that wiill bolt up 2 the 3 inch inlet pipe and sound better or perform better than the american thunder
Last edited by 91 z28 350; Aug 26, 2003 at 08:24 PM.
Joined: Jul 2000
Posts: 7,386
Likes: 1
From: In a mint Third Gen!
Car: Red 87 IROC-Z28 T-Top
Engine: 5.7 Tuned Port Injection
Transmission: 700R4 Auto
Axle/Gears: BW 9-Bolt 3.27
It's the all 3" 80 Series but I don't know the part number. 
Last edited by IROCZTWENTYGR8; Aug 27, 2003 at 03:01 AM.
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