Cat question

[Skinner]

I have a 4" MBRP turbo back exhaust and I was wondering what I might gain by removing the stock cat and installing the MBRP cat delete pipe? I would like to get a little more sound out of my exhaust. Performance would also be a plus. Also someone told me if you remove the silencer ring out of the turbo intake that too gets louder. Any info would be helpful

[stump0331]

welcome aboard


you will gain some sound, lower egts, louder turbo whistle by removing the cat.

[sldghamr]

legally you are not supposed to take out the cat (e.p.a. regulations), therefore a shop won't do it and you have to do it on your own. i've also heard that it will mess up your computer settings cuz there is a sensor after the cat.

[stump0331]

there arent any sensors after the cat, at least on the 6.0s

[uhpilot]

I believe the sensors were one of the "new improvements" for the 6.4's. The 6.0's don't have one.

What I plan on doing is order a cat delete pipe that mounts in place of my cat. Ford was at least nice enough to just bolt the cat on so I could take it off and on when needed. (ie; when I take it back to the dealer.)

Ricky

[sldghamr]

Originally Posted by stump0331

there arent any sensors after the cat, at least on the 6.0s

ok, i was told on several occasions that somehow the comp senses that the exhaust isn't what it supposed to be and therefore changes thing in the engine.

[stump0331]

yeah i have heard of computers throwing ghost codes but deleting the cat wont hurt

[straycat]

Welcome to the site Skinner, glad to have you here. Lots of great people here to help you out, and don't forget to introduce yourself in Introductions and meet the rest of the folks here. At the top of the page is the map, you can put yourself in there and know where you are in relation to the other members. Have fun with the forum, and don't be afraid to jump in with comments and questions, thats why were here.

Gord.

[nummit]

I have been running with no cat or muffler for over a year with no issues. Like was said earlier, you will hear more whistle and see slightly lower EGT's

[Betaracer]

The silencer ring is not easily removable on vehicles newer than 2003. It requires machining off and even then only barely increases whistle.