View Single Post
Old 08-09-2009, 01:51 PM   #6
SGOS252382


 
SGOS252382's Avatar
 
Drives: 2010 Camaro 2SS/RS
Join Date: Mar 2008
Location: S.W. Florida
Posts: 6,294
Quote:
Originally Posted by Van View Post
Soooo then all the GMPP exhausts are axle-back and provide no power gains whatsoever?
They should make a few HP, especially on the L99 A6. The L99 A6 uses a different muffer than the LS3's. They looks the same on the outside but when you cut them open, they're very different.
The LS3 mufflers are a straight through design with some packing material. The L99 mufflers are all crazy looking on the inside with more packing material.

My GMPP "off road" axle back has a 100% staight through design. Its a straight shot in and out the other side. So it should be worth a few HP. Its also much lighter than the stock mufflers.
SGOS252382 is offline   Reply With Quote