I think the torsion bars may be the issue.

 

Doesnt S/W's offer highflow cats and a y? They should fit with the headers. All though I dont remember seeing any posts dont they offer catbacks too. Thats what I remember their web site saying. It seems you were happy with the Gibsons, so any Lt should be that much better.

 

if you plan on spending alot then why not get the dynatechs? they come with a catted y-pipe and it all bolts in

 

Yep, the SW's come as a complete header and y-pipe system, but they're only listed for 03-05, and nobody seems to know for sure if there's any difference between the 99-02's and if they'll fit properly. They do make a chambered cat-back also.

I considered the Dynatech's, but I plan to go true dual after the y and install an x around the area where the y meets. The SW's look like the y junction could just be replaced with an x and I could have the dual pipes come off of that. And honestly, I know this may sound silly, but that Dynatech hump on the driver's side is kinda funky looking to me.

 

Yeah I always wondered whats up with that too.

 

hey I have been happy with my ASM's have had no problems with my coating and I have been running them over a year. They make great hp/tq #'s as well and you know they will fit, and I have not had any exaust leaks or nothing like that either. I believe you will be happy with ASM's..... hey its only money haha. Get them and dont worry about it no more and yo have a great reliable set of headers.

 

BudHAyes3

Call me at 800-878-3635. We will make you a good deal on the headers if you let us know how they fit. They "should" but I hate to state that when we have never installed them on an earlier truck.

For dyno #'s comparing our headers to another manufacturers-our headers as used by GMHTP were on a truck with no bolt ons. The numbers improved a lot after the tune, and also if we wanted to generate big dyno numbers for the magazine, we would have had a truck with tons of mods first and then the headers would show huge gains. We also back our headers with a limited lifetime warranty, so these will be the last set you have to buy.

Thanks
Al
Stainless Works

 

if Bud doesn't want to do it, i can throw you headers on my 03 this weekend

I have acess to a few CAD systems too so i can actually fix them for you (if bud cant do it).

-trey

 

Would your headers work any better with a quality coating (like Jet-Hot) inside, and out.

 

I'm game I can take pics of the install too.