I have a cat-back from a '94 trans Am mounted on my '84. It required a custom pipe from the catylitic converter to the remainder of the cat-back. In addition, the end-pipes are straight on a 4th-gen when the third-gen requires a slight bend downwards. Otherwise it looks dorky. Other than that, it will fit fine!
Want to have a listen? Check out the sound of my 305 H.O. on my website!
http://www.isthq.com/~dan/fcar.html
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Daniel Burk
http://www.isthq.com/~dan/fcar.html
'84 Trans Am WS6/L69
KB SFC, Moser axles, Torsen Diff. PST suspension, Braided stainless brake lines,
5-point racing harness, Koni struts, 11-inch rear disks,Spohn Adj. torque arm,
Ported 305 heads w/1.94"intake valves, Comp Cams XE262H, Griffen alum. radiator,
Speed-sensitive steering conversion, underdrive pulleys, Crane Hi-6 & more. 1.05g skidpad verified.