I was going to get Pacesetters but supposedly they don't fit the HD trucks but do fit the regular trucks. What fits my truck? If the Pacesetters fit then let me know, and provide pictures if possible. I am not interested in running the ORY because I will keep the dual 3 inch pipes into the muffler with no cats and run either an X with 2 mufflers or a single muffler with dual 3" inlets with either single 3 1/2 outlet or 4 inch outlet. That is my exhaust setup, so what headers should I run?

 

I ran OBX on my 03 2wd 1500HD They had plenty clearance, no issues with fit what so ever. I could put a hand between them and the frame, not even close to rubbing. They looked great after a year of being installed.

 

But they have the 2.5 inch collector and I would think the 6.0 would like a larger collector since the stock piping is bigger to the muffler. Just my thoughts on that

 

Maybe, just sharing my experience. I will say this, I used the OBX with Y for a 5.3 and ran a single 3" Corsa cat back. Thinking I had a restriction there, I droped the collectors and had no drop in boost, well not the collector itself, but the first joint after the O2. I know the collectors were 2.5" but would think that practically open headers would be less restriction than a mile of 3" pipe. Guess I was wrong. May not prove a thing and not trying to sway you, just saying what I saw.

 

I feel a difference on the top end with the pacesetter versus the obx. Pacesetter has much better collector and 3" piping. Problem with Pacesetter is cheap quality and will probably need to be replaced in a couple years (southern climate may not have this problem).

 

i have an 06 1500 hd i got the pace lt's they fit fine. it gets really close to the trans on the pass side but besides that i had no prob fitting them. i just had a friend bend me pipes back into the rest of my exhaust,. sorry i have no pics right now tho. i ran them back to a magnaflow x pipe and into slp loudmouth I's. it souinds nasty! def picked up some power from the install and the pacesetters look great.

 

Gawd, LT's and Loudmouths must be crazy loud. Love to hear it.

 

Yeah that must sound sick

 

I think I'm just going to take my stock catback off and run open Y

 

Hmm so they fit on a 1500 HD if you could please take some pictures for me