Cat Delete problems

[War Eagle B]

Was thinking of getting a new exhaust with a cat delete on my '05. I read in an article somewhere on teh internets that Ford recommended not doing a cat delete (of course) because the turbo would start generating boost at idle. Anybody out there who has done a 6.0 cat delete have any problems with this?

[stang135]

I don't know what the big deal would be if it was making a little boost at idle my cat has been gone for about 25k and haven't had any problems with it being gone and I love the sound without it!

[POWERED SPARKLESS]

Ditch the cat you wont have any problems.

[Dave]

How the hell would eliminating the cat cause the engine to build boost at idle

Mines been gone for 50k miles No boost at idle. No issues whatsoever

[War Eagle B]

What I thought too. Didn't really see what the problem was, sounded to me like the typical manufacturer line of "We built a perfect truck, why would you mess with it?"

I thought a little boost at idle would be a good thing, not as much turbo lag if it had a head start.

[PGreenSVT]

No problem, ditch it.

[mmccraney]

Originally Posted by PGreenSVT

No problem, ditch it.

x2. I did mine 2 days after I bought it and no problems.

Well; if you think more whistle from the turbo is a problem, you might have that

[Big Angry Hillbilly]

Yup. Ditch it. My truck makes boost at idle with all the smog gear on it -- it's a 2008 though.

[mavisky]

I'd love it if my truck made boost at idle.

[MountainMan]

Last month I installed an MBRP 4" turbo back and deleted the CAT at the same time on my 2006 F-350 4x4. The only "problem" I have incurred is a 2 to 2.5 MPG increase empty at 60 to 65 MPH open highway with 3.73's. I was getting around 17 to 17.5 MPG, last tank I got 19.6 MPG hand calculated. My towing mileage increased about 1 MPG. These are the only "problems" I have noticed so far.