Ok. I currently have a glasspack that is worn out and I have lost low end tourqe. I like the Ravin Z33 muffler, but they do not have a SI/2.5"-DO/2.25". Any way to fix this problem.

 

Forget the Glasspack and the Rav - check out Flowmaster's HushpowerII -

http://www.flowmastermufflers.com/cg...ml?id=V8mSRnWJ

It's what all of the custom shops are putting on the show rods because they fit about anywhere. I put one on my son's 82 Ford - duals and it sounds awesome. It's the old rumble sound!

kikn.

 

I have heard you lose a lot of back pressure with flowmasters and because I only have a 4.6 I need all the low end tourqe that I can get.