Will stock 6.1 cats work on a 5.7??
R.I.P 05 Maggie RT
Welcome 05 Z71
CAI, MT's 35's, ProComp 18's, 6" Lift
06 Harley custom, chopped, dropped and jockied
With SRT headers, yes. With stock manifolds, not without a lot of work. If you mean just welding them in, then yes, but a lot of work as well.
The SRT headers and RT manifolds are different lengths and the rotation of the mounting bolts are different.
Hope that helps,
Oh, then I guess not.