Exhaust Mod
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Senior User
Joined: Feb 2007
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Exhaust Mod
I currently have a 4" cat back with a muffler delete. Pondering installing a cat delete pipe keeping everything above that stock. What can I expect by doing this? Just how much louder will it be (if any)? FYI my cat back was custom installed
Thanks in advance!
Thanks in advance!
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Joined: Dec 2005
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I have heard a 4" turbo back cat and muff delete and it was abit lout for my taste.
I was thinking of doing a cat delete. However, it appears that some states are going to start smog checks on diesels starting as early as 2009 so I left mine on.
I was thinking of doing a cat delete. However, it appears that some states are going to start smog checks on diesels starting as early as 2009 so I left mine on.
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Joined: Sep 2006
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I have a catback with the muffler and yes it is louder than stock...Not bad loud but you will know it is there it has more of a rumble wether it be cruising along or wide open..Every body says on the outside all they here is a wooshing sound and the motor though kinda weird..I have the cat delete pipe but have yet to put it on..I may give it a try this week..Oh mine is MBRP what brand did you get?
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No emissions in my county, so don't have to worry about that. Of course if it has to go in for warranty work will have to have the cat slapped back on. My cat back was installed with a Walker BTM, lost the BTM and gained a large grin!
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Joined: Jul 2005
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From: Millersville, MD
Originally Posted by mcprjmngr
No emissions in my county, so don't have to worry about that. Of course if it has to go in for warranty work will have to have the cat slapped back on. My cat back was installed with a Walker BTM, lost the BTM and gained a large grin!
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i have heard the mbrp with straight, muffler delete w/cat, cat delete w/muffler I personally like the cat delete with the mbrp muffler BUT this is not legal for road use so if you happen to live in a fine state like ohio you will get pulled over. The cat delete with muffler gains alot of rumble with a little less whistle. straight pipe sounds like a vaccum cleaner running not my taste.
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Joined: Apr 2006
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From: Neptune Beach, FL
http://www.youtube.com/watch?v=RsYeOij1g8I
Turn up the speakers.. That's my 4" Turbo Back, no muffler, no cat..
Turn up the speakers.. That's my 4" Turbo Back, no muffler, no cat..
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Post Fiend
Joined: Oct 2005
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From: Plano TX and Brentwood TN
Originally Posted by mcprjmngr
No emissions in my county, so don't have to worry about that. Of course if it has to go in for warranty work will have to have the cat slapped back on. My cat back was installed with a Walker BTM, lost the BTM and gained a large grin!
Originally Posted by dayooper
BUT this is not legal for road use so if you happen to live in a fine state like ohio you will get pulled over
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Gentlemen,
I know that the cat is a federal requirement, however, we do not require emissions testing in the county I live in. Therefore I am not concerned about a cat check that normally would be required in an emissions testing... BpofMD have a beer, it's O.K...
I know that the cat is a federal requirement, however, we do not require emissions testing in the county I live in. Therefore I am not concerned about a cat check that normally would be required in an emissions testing... BpofMD have a beer, it's O.K...
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Originally Posted by dayooper
this is not legal for road use so if you happen to live in a fine state like ohio you will get pulled over.