Does anyone have a good suggestion for a cat back 3" system and muffler or of where I can get one at?
'89 350 L98 Iroc-Z
Edelbrock Headers to stock cats

 

I like my Flowmaster, though it's a little loud.
Pick up a Jegs or Summit catalog (or go to their websites). They have a half dozen or more to choose from.

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88 IROC with cobbled together (not by me)drivetrain, 86 (?) TPI unit on an '83 305,CE subframe connectors, Edelbrock strut tower brace, polygraphite bushings all around...it handles like a dream, but man is it hard to push!!

 

You might want to post this in the exhaust forum as you will get a larger response then here.

But Ill give ya a suggestion, is it sound or power or price that drives the purchase??

Sound - anything that sounds good to you flowmaster, dynomax, borla, hooker????

Price - Dynomax, flowmaster.

Power - Dynomax, Borla, flowmaster.

hope this helps.

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1989 Trans Am GTA, L98 5.7L TPI, TH700-R4, T-Tops, dual cats, 9-bolt rear, 3.27, Dynomax muffler, K&N
1992 Camaro RS, LO3 5.0L TBI, T-5, T-Tops, 3.08, L69 Dual Snorkel, K&N - Sold

Honda engines ROCK, I have one on my lawn mower but I still have to push it.