Anyone hear of VeForce Mufflers?
The stock exhaust system from the manifolds to the tailpipes is designed to meet C.A.R.B., it is not designed for maximum performance. A cat-back exhaust is a much better option than just replacing the muffler. New muffler = 5-7 rwhp, new cat-back = 15-20 rwhp.
I would recommend the Hooker cat-back. It is fairly cheap...around $300 and will support a heads/cam LS1 just fine. Not that there isn't an exhaust that will make more power, but this one would be a good setup for you.
http://www.flopro.com/VForce.htm
they are made by flo-pro which is which is where many muffler shops buy exhaust products from or from a place that distributes flo-pro products. flo-pro makes the mufflers that muffler shops use as replacements for stock mufflers as well as glasspacks which all good muffler shops sell.
The stock exhaust system from the manifolds to the tailpipes is designed to meet C.A.R.B., it is not designed for maximum performance. A cat-back exhaust is a much better option than just replacing the muffler. New muffler = 5-7 rwhp, new cat-back = 15-20 rwhp.
I would recommend the Hooker cat-back. It is fairly cheap...around $300 and will support a heads/cam LS1 just fine. Not that there isn't an exhaust that will make more power, but this one would be a good setup for you.

hooker
slp D/D
magnaflow
are all great budget catbacks.





