Exhaust Upgrade
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Senior User
Joined: Sep 2006
Posts: 247
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From: NC
Exhaust Upgrade
Im looking to upgrade my exhaust on my stock 1995 dually. I was looking at the MBRP 4 inch turbo back with the 3 inch downpipe. This exhaust eliminates the cc.
My question is on the legalities of this. I live in North Carolina and am new to the diesel world. With the yearly instpection that we have to do, does the diesel have to have the cc like a gas burner?
Thanks for any help on this.
My question is on the legalities of this. I live in North Carolina and am new to the diesel world. With the yearly instpection that we have to do, does the diesel have to have the cc like a gas burner?
Thanks for any help on this.
Hotshot
Joined: Jul 2008
Posts: 11,231
Likes: 130
From: Thomasville, GA
I just went through this dilema with my '95. Since diesels of our year don't get a emissions test you don't need to have the cat. You DO need a muffler though.
I have the MBRP 3" downpipe and it's great! For my exhaust I'm getting the Magnaflow stainless intermediate pipe ($80) which eliminates the cat, a 4" glasspack muffler, and then the Magnaflow stailess tailpipe ($110). All 4" pipe.
I already have my cat off and I had it straightpiped for my inspection and it passed everything except for having a muffler.
I have the MBRP 3" downpipe and it's great! For my exhaust I'm getting the Magnaflow stainless intermediate pipe ($80) which eliminates the cat, a 4" glasspack muffler, and then the Magnaflow stailess tailpipe ($110). All 4" pipe.
I already have my cat off and I had it straightpiped for my inspection and it passed everything except for having a muffler.
Laughing Gas
Joined: Feb 2009
Posts: 921
Likes: 1
From: Denver CO
In CO we have to have an emmisions test depending on where you live in the state, some ares have none heres you have to pass the opacity test, and you have to have a CC but dont have to have a muffler.
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Senior User
Joined: Sep 2006
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From: NC
Thanks for the responses. I think I will shoot for it. I think I'll do the Resistor mod and the FPR mod tommorrow and shoot for the exhaust and a tranny shift kit. I've been reading about a diy intake mod. Anyone have any info on that. Again, thanks in advance.
Hotshot
Joined: Jul 2008
Posts: 11,231
Likes: 130
From: Thomasville, GA
Look at my gallery or click on the link below my user name on here. There are pictures of the intake mod...
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Senior User
Joined: Oct 2006
Posts: 332
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From: Emmett, ID
Im looking to upgrade my exhaust on my stock 1995 dually. I was looking at the MBRP 4 inch turbo back with the 3 inch downpipe. This exhaust eliminates the cc.
My question is on the legalities of this. I live in North Carolina and am new to the diesel world. With the yearly instpection that we have to do, does the diesel have to have the cc like a gas burner?
Thanks for any help on this.
My question is on the legalities of this. I live in North Carolina and am new to the diesel world. With the yearly instpection that we have to do, does the diesel have to have the cc like a gas burner?
Thanks for any help on this.
In Idaho and Washington, if it came with a CAT (and or muffler) and you have to have the vehicle emissions tested, it has to have a CAT (and or muffler). I have stack breakers on mine to pop a pipe with muffler and CAT inline for e-testing. I have tried several times to get tested with straight pipe but they look up the vehicle year and then fail me on the visual.
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