I've been told that a design like the Thorley 1->2->4 collection style is better for low end grunt. And the LCE 1->4 collection style is better for higher reving horse power. I have the Ceramic coated Thorley and it installed very nicely. The shiny Thorley I think will Change colors. I don't know how much of an improvement the exhaust made because I did a lot of stuff at the same time.

Good luck with your choice.
GOI <img src="/forums/images/graemlins/kewl.gif" alt="" />

87 Toyota 4Runner-RV Head, Custom Grind Cam, Doug Thorley Header, Keith Black Pistions, 2 1/4" Magnaflow cat, Dynomax Exhaust
2003 Toyota Matrix XRS-Injen CAI