Kooks Catted X pipe

[BobbyJMach1]

I have a 03 Mach 1 with Kook full length headers, and x-pipe. I'm looking for a Kooks catted x pipe, or should i just buy high flow cats and have them welded on my pipe? Trying to save some money.

[Rick Modena]

You can buy them and have them welded in and it will save you money, but the cats and welding won't be in SS and you will have rust issues. If you don't care about what it looks like underneath then buy and have them welded in. I would just buy the Kooks catted pipe tho...

[BobbyJMach1]

Thanks Rick. I believe that's what I'm going to do, just buy the kooks catted pipe. Now I need to see if I need the 3' or 2.5" I believe I have the 2.5", I'll have to check. it's been a while since I've had exhaust work done. I've done some engine mods, basic rebuild but comp custom cams and E85 gas.

[Lone Star Performance]

2.5" would be perfect

[Rick Modena]

2.5" would be perfect

Yup, 2.5 is all you need, the 4v heads flow really nice but at 4.6l that's more than enough diameter exhaust.

[BobbyJMach1]

Thanks, I went with the 2 1/2 with cats, and I still didn't pass inspection. it shows Catalyst Not ready, EVAP System not read, and EGR not ready. Any suggestions? I'm new to Texas so I'm not familiar with this stuff.