LPP LT's and stock cats

[navy34]

Sorry to fill up the forum with another LT question guys, I promise I'll hold off after this one. I was wondering if I got some LPP LT's and got my stock cats fabricated into the Y, will that diminish the performance of the LT's? I've heard that buying high flow cats arent worth it because the stock cats are already high flow. The guy wants 400 bucks to fabricate it and put it in, which means the total will come to 950 with the headers. Is this a good idea or should I just drop a few hundred more for dynatechs. Ideas?

 

[blueflamed03]

one, yes, you will still see gains. the gain is getting the flow out of the engine. The LPP's are 1 3/4" primaries, so yes, that will help.
If you want to weld in factory cats, sure, use the LPP ORY. Then you just need a cutting saw, and a good welder, and can weld in 02 bungs as well.