Cat vs No Cat

[Zookie400]

test pipe (cat eliminator pipe) is definatly the way to go. gutting it is easy, but then you dont have anything for backup in case you fail emmissions.

 

[sawed off]

So can you just get the pipe from mbrp or somethin for the stock exhaust? I don't want to gut my cat.

 

[kingkevindavid]

MBRP Sells the pipe you need. besides being an extremely expensive item to destroy, gutting the cat causes turbulence in the exhaust.

 

[jasonfrenchsr]

egr

just wondreing if anyone has done the egr block off coolent kit on the 6.0 ? i hear this would have saved some blown head gaskets when adding pwr mods. like bullydog, i know two guys that done just that and the both had to replace there engiens! i hear this really works? testing the waters.

 

[LowSpoolHighFuel]

Straight pipe all the way!! It sounds like a jet engine when the turbo is spooling and i also notices a small mpg increase, not much but every bit counts.