Originally Posted by cajun2010
id like to get headers myself, shorties, but i hear so many mixed reviews on here about noise, CELs, all kinds of hits and misses
I think it would open it up a bit and give me a deeper tone, or i would hope!
Don't worry about cel's with the Doug Thorleys. None that anybody has seen.They fit up fine and they weld in so no cel, just make sure the coating on the headers is scrapped off where they weld to the down pipes or I was told by my muffler man it can leak through.
They sound good, less drone and a bit more quiet at low rpm but with the cat back screams and sounds just awsome as you rev it up. Also you get the famous "tinny" header sound and with that some actual noise from the engine compartment instead of just injector(?) sounds. On the weekend when we are out I try to find any open 45 mph road just to here the car roar
As for power they get maybe 5-6 at peak, more after that but mostly to help bottom/mid range torque and tip in throttle response.It's not alot like LT's but its there.
#1 car 2010 Black 2LTRS 1/28/10-10/15/11, 17900 miles
#2 car 2012 Red 2SSRS 10/15/11-
Mods: Outlaw Axelback & J Pipes/Heritage&Stillen Grill/Halltech CAI/Apex Scoop,Washer Bottle/OEM Strut Tower Brace/VMax T/B/ G.M. Blade Spoiler/SLP Splitter/TSW Bathurst wheels & Michelin Super Sport tires/JBA Shorty Headers,HiFlow cats & tune/Remote Clutch resovoir/ Pedders Supercar coilovers and Pedders 27mm/32mm ZL1 Spec sway bars / Whiteline craddle Inserts & Upper rear arm bushes/ 416/414 RW HP/TQ