i'll have to do that..see what they say, what did you notice performance wise from these headers?Originally Posted by metalchips
i like running as little polution control as possible...my favorite bumper stick is "Buy a Hybrid, I need your gas!" haha
05 Crew Cab....just starting the mods!
5.3 w/ Airraid intake tube, stock box with K&N, MBRP 3.5" cat back, Dynatech Longtubes, wait4me tune....to come...4.10's, custom Dyno Tune, maybe a few other goodies.
I'm going to put a hybrid sticker above or below my 6.7L stickers when I do them.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
I put a Cam in about the same time. With both I dropped a second in the 1/4 mile with my Interceptor gauge.
I am running my cats so I would be emission legal.
I didn't need the air pump fittings.
2002 GMC 1/2 ton Sierra,4WD, Xct cab, camed, mid-length headers, Nelson tune, electric rad. fan, trany cooler, Heavy 5750 lbs with topper.
thanks fellas.
John
Four by Four to the floor.
I dont need the pump fittings either....you had to build your Y-pipe though? I could probably do that, but i want to try to keep my stock exhaust whole so i can put it back to stock if i need to sell it.
05 Crew Cab....just starting the mods!
5.3 w/ Airraid intake tube, stock box with K&N, MBRP 3.5" cat back, Dynatech Longtubes, wait4me tune....to come...4.10's, custom Dyno Tune, maybe a few other goodies.
they work fine on a 4x4.mine were easy to install,i did do them on a lift tho.yes youlle gain some performance ,it was 1 of my favorite mods.
mods:2004 sierra ext sb,20s ,big brake kit w,hawk pads,air bagged,2006 6.0 lq4 swap,vortec supercharged10psi, air to water intercooled w/ dual electric fans on it ,snow meth injection kit,60lbers, e-fans ,big radiator swap ,cam 218 /222 548/550 comp .hardened prs .1.85 comp roller rockers ,guideplates ,crane double springs,trans 4l65e built .pacesetter l/ts true duals w/x pipe and magnaflows,14 bolt rearend swap ,3.73s,aroemotive fuel pump system w/elec.fuel controller and bypass regulator a/n fittings, taylor 10.5s interceptor gauge,aem w/b a/f ,autometer boost/vac NELSON 93 OCTANE TUNED .
This is what I cut off the stock Y.
Moved the right cat back about 1 inch.
So your stock Y is beyond easy repair.
Stock is stainless--hard to bend etc--but should last.
Hope this helps.
Last edited by metalchips; 08-24-2009 at 10:08 PM.
2002 GMC 1/2 ton Sierra,4WD, Xct cab, camed, mid-length headers, Nelson tune, electric rad. fan, trany cooler, Heavy 5750 lbs with topper.
that helps a lot! I'll get ahold of my salvage yard guy and see if he can get me a stock y pipe to cut up.
I wonder how far off the Pace setter off road y would be? Then i can install some high flow cats.
05 Crew Cab....just starting the mods!
5.3 w/ Airraid intake tube, stock box with K&N, MBRP 3.5" cat back, Dynatech Longtubes, wait4me tune....to come...4.10's, custom Dyno Tune, maybe a few other goodies.
" I wonder how far off the Pace setter off road y would be? Then i can install some high flow cats "
Can't help you on that old buddy, need some PS people to chime in.
time for some more
2002 GMC 1/2 ton Sierra,4WD, Xct cab, camed, mid-length headers, Nelson tune, electric rad. fan, trany cooler, Heavy 5750 lbs with topper.
its cool you helped a lot....i had wanted to try those Tri-y's but i hadnt found anyone with them yet. I can do some trial and error too, the offroad y is cheap" I wonder how far off the Pace setter off road y would be? Then i can install some high flow cats "
Can't help you on that old buddy, need some PS people to chime in.
time for some more
05 Crew Cab....just starting the mods!
5.3 w/ Airraid intake tube, stock box with K&N, MBRP 3.5" cat back, Dynatech Longtubes, wait4me tune....to come...4.10's, custom Dyno Tune, maybe a few other goodies.
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