Headers or Cat back?

[H & E]

Here's my understanding on the dynamics of primary size. It's pretty simple, but that's how I keep things. The larger the diameter of the primary, the higher up the rpm range you can expect the power increases.

[Racer606]

Just to add some more food for thought. If you are concerned about warranty you could look at SLP products which dealers in the CLT area will install and not void the warranty. SLP has some very nice exhausts available and from my understanding have LT headers in development and other items such as CAI and body components.

[luckynuts]

Originally Posted by Racer606

Just to add some more food for thought. If you are concerned about warranty you could look at SLP products which dealers in the CLT area will install and not void the warranty. SLP has some very nice exhausts available and from my understanding have LT headers in development and other items such as CAI and body components.

Kinda what I was thinking as far as the warranty part of the question

[Bell040]

I posted this in another thead but it didn't get any responses (sorry its off-subject):



Could this camshaft possibly keep the warranty intact since it is a GM part???

(P/N 88958733)


http://www.sdpc2000.com/product/K889...LifterKit.aspx ... but you can get this at the dealer.

the cam is explained on page 70 and 71 of the pdf catalog (pdf page #37) http://www.gmperformanceparts.com/_r...09_Catalog.pdf

Just like you, GM Performance Parts engineers spend much of their time
wondering about the “what if” combinations when it comes to mixing and
matching LS engine components—and they have the tools and facilities to act
on those instincts. That’s how we created the exciting LS376/480 crate engine!

Our power-mad engineers started with the production LS3 6.2L (376
cubic-in) engine—including its rectangular-port L92-style heads—and
swapped the stock camshaft for the racing-inspired LS Hot Cam
(P/N 88958733) and the result was nothing short of astonishing. With no
other modifications, horsepower jumped from 430 to 480 and torque rose
from 424 lb-ft to 475—that’s about 12 percent more power and torque
from a simple camshaft change!

The key to the power boost is the Hot Cam’s 0.525-inch lift on both the intake
and exhaust sides, along with 219-degree/228-degree duration specs. That’s
less lift on the intake side than the stock LS3 cam, but considerably more duration,
allowing the valves to stay open a little longer to draw in more air. As a
result, peak horsepower comes earlier than the stock LS3 and the torque curve
remains flat higher on the rpm band.

more low end HP.......

and I came across this... http://www.gmperformanceparts.com/_r...3_12579617.pdf.... i am sure this is not the LS3.... but WOW