05f150/5.4

I have an 05 f150 4x4 5.4L, I have a roush cold air intake, gibson shorty headers and duels, but i can't find any stainless cats. I was woundering if there was a way i could fool my o2 censor so i could punch out my cats to get more power?

Mod (Ret.)

You're not going to get any "noticable" power by removing or punching out your cats. Leave them be, and leave the 4 O2 sensors intact.

06Fatty

How do you like the Roush Cold Air Intake??? ive been contemplating either getting the roush or the k&n... Thanks alot

AZFX4

If your going to hollow out your cats or replace them with hi-flows, and you have a CAI and Headers. Your probably running lean. If you don't have a tuner/programmer already I would suggest 1 with custom tunes to fix the lean issue.

Check out Gryphon, Powerhungryperformance. They can write custom tunes for your vehical and get rid of the lean issue. FYI. 04-05 and some 06's run lean with just a CAI.