camcamaro1991

iTrader: (19)

Did you get your CTS-V? pics!!!

NemesisC5

I've been wanting LT headers for quite some time, both for performance and more visceral exhaust sound but have questions if I would valvetrain noise. Exhaust sound I want, mechanical sounds I do not. A few posted they hear valvetrain noise, is that common to all GMT 900 V8's? I have the L9H 6.2 in my 2011 1500 CC and keeping the factory 3.5" exhaust, can someone tell me if they've experienced valvetrain noise in a similar application with headers??

TX Tahoe Z71

iTrader: (28)

With my catless LPP headers, I found the biggest Magnaflow muffler I could fit, about a 24" oval case, iirc. Still way too loud, it would wake the neighbors up at startup. Threw a 5" case round behind that one. Still too loud. Went with the biggest round I could fit, 7" round Magnaflow, and now it is mellow... until I get on the throttle.

But I feel your pain. Many times, I was about to pull them off and go back to stock.

GMCtrk

iTrader: (27)

It's just the nature of the beast with headers to get more noise. If you don't want to deal with it stay stock.