Well i have done alot of research on headers and i think i want to go with doug thorley headers, but i cant find a site to buy them at? So could some 1 please tell me where to buy em at and if they even make some thatil fit my truck? Thanks!

 

call thorley. ask for a part number for an ls1 truck. call summit (or anyome who carries thorley stuff) and give them the part number. and there ya go. i would go rummage and find the part number but i'm lazy but not as much as you for not trying to do a little digging.

 

Lazy!

The part number is THY-310Y according to thorleyheaders.com.

LINK HERE

 

I'm having a good day today so I'm feeling nice.

Summit p/n DTE-310y $429.99

This is for the chromed ones. Which I have. They turned a cool rainbow look the second day which I think is cool b/c you can see it though the gap from my body lift b/c I didn't put my gap guards on the front yet.

 

i called thorley today 2day and they said there headers will fit a 2001 truck but not 2002 trucks.

They said they wont fit an 02 beacause on the 02's they took the EGR valve off? Could some1 tell me what an egr valve is and why this would cause them not to fit? thanks!

 

Not sure exactly what the EGR does, but you can order the headers and get block-plates made to cover up the holes. Other than that, there will be no fitment issues.

Kent

 

are you sure the headers dont need the egr valve to help them wotk correctly somehow? BTW where did u purchase yours at? Thanks!

 

Kent is right dude, just put some plates over the EGR opening and you will be fine. All it does is inject exhaust gas into the intake to reduce emissions or some ****. But you don't have it so it doesn't matter anyway. I don't know where to buy these though, Tbyrne.com seems to have the most truck stuff.

 

When u put your headers on did u notice any increase in horsepower?

 

When u put your headers on did u notice any increase in horsepower? Cause they seem to look kinda like shorties? And i know shorties dont do much?