straight pipe
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Elder User
Joined: May 2007
Posts: 943
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From: North East, MD
straight pipe is it safe?
I finally got around to putting on my down pipe yesterday. What a pain to get out. I wnet ahaid and started it up with just the new dp installed and wow it sounds great. I want to gut the cat but haven't been able to get it off yet. My question i will it hurt the truck to have only the dp hooked up? I have it turned down so it blows onto the ground
Last edited by wmiller; Oct 14, 2007 at 06:41 PM.
Lead Driver
Joined: May 2007
Posts: 8,608
Likes: 13
From: Belair md
doesnt matter unless its got dot numbers on the truck and even then the dot guys around here arent going to look for a kitty on an old diesel truck. i have never been bothered and i pass the scales twice a day
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Elder User
Joined: May 2007
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From: North East, MD
it doesnt have numbers yet but i need to put them on as i do some running on I-95 with loads. ive prob got a lot higher chance of getting nialed for being over weight on the axlesthen the cat
Lead Driver
Joined: May 2007
Posts: 8,608
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From: Belair md
is it a work vehicle or personal truck? if its personal then you shouldnt run the numbers? i am confused
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Lead Driver
Joined: May 2007
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From: Belair md
not sure, i dont beleive you will have a problem even with a farm use, they dont require dot markings. i just looked up a bunch of different brand exhausts that are kittyless and none of them say anything about offroad use only. the only thing i could even see a remote possibility of a problem with is no muffler, and if they harraseed you for that then it would only be an inspection ticket and that cop was having a really bad day to bother you for that
Senior User
Joined: Apr 2004
Posts: 185
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From: Taylorsville, KY
my question is why do our trucks even have cats on them? the chevys and dodges dont have them. I think that they have cats now but I know that up through 2003 neither one of them had cats from the factory.
Franklin
Franklin
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Joined: Apr 2004
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From: AZ
Best thing to do is gut the cat and leave the muffler if your worried about noise. Our (94-97) trucks had a good flowing muffler from the factory. I know my dads 04 6.0 had a cat but I gutted it and he saw a 1 mpg increase in town and got his best of 20mpg on the highway a few months ago.