Hey guys, i just got done with my LS6 swap in my 03 rcsb. I want to go with long tube 1 3/4 headers and true dual exhaust. I was looking at stainless works, kooks, and dynatech. All of them have a y pipe for 99-06 silverados except the SS model for 6.0, which they have a dual setup for. My question is, can i buy the header/mid pipe setup for the SS and have an exhaust shop just continue down with the duals? Or will there be fitment issues with the dual mid pipes? Seems to me like it there should not be any issues and would bolt right up. Just wanted to be sure before dropping 1300 bucks..

This is the dynatech supermaxx setup, and is basically what im looking for.

 

There shouldn't be any fitment issues that I can think of. Certainly not any that couldn't be worked around.

 

I got an 03 SS and the issues that I have seen is with the AWD setup so we can't use the kits Y pipes. But since your not in an SS, you shouldn't have any issues getting them and having a shop fab up the rest.

 

Sounds good, thanks guys. Now just have to decide what brand to choose.

 

Id check Maryland Speed . They've been running great sales on Kooks headers for the holiday sales.

 

The pipes will fit fine, im running silverado ss cat pipes and catback on my 99

 

Personally I would avoid the super max as they are only 2.5" collectors.

I like my Kooks.

 

They all neck down to a 2.5 anyway goin into the factory exhaust...

 

I have TSP LT's on my pile with there matching y pipe, 3" all the way..... Btw factory gm pipe Diam. Is 2.75"..... With 3" flange from the cat merge pipe

 

Escalades, denalis, silverado ss's with the dual cat pipes are 2.5"... The standard5.3/4.8 y pipe/ single intermedite pipe is 2.75"....