Quote:
Originally Posted by Van
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.