[Formulajones]

Originally Posted by ZeGermanHam

Check out this video: https://youtu.be/_PVXvHkr-Vs

That is nearly the identical engine I run in my Chevelle with very similar output.

I run a full 3" mandrel bent system with Torque Tech tailpipes and Dr. Gas "X" with Dynomax Ultraflow mufflers.

The 3" system is very easy to fit on an A-body with plenty of room. Been street driving this setup for 20 years.


For me, making the choice on exhaust size would come down to the car itself. F-bodies are pretty fussy to fit a 3" system on, and I'm not a fan of dual mufflers hanging under the floor pans either. I prefer the transverse deal on these cars and almost always use 2 1/2". For 500-ish HP that works just fine for me. If it were an A-body, I'd probably step it up.

Since Torque Tech went out of business I stopped looking at 3" stuff for F-bodies. They made some of the best fitting stuff in the industry.