I bought a 06' RCSB and found out that my Doug Thorley Tri-y headers wouldnt work with the stock y-pipe.GM decided to use different converters and moved them closer to the engine.Well in a quest to save some money,I bought a y-pipe of a 2001 truck that the converters had clogged up.I plan on gutting the cats and installing the y withe my headers.Do you guys think that the y-pipe will fit with no fitment problems.

 

it should...the cat placement change was only done to affect catalytic light-off time