No Mufflers, is it illegal?
Senior User
Joined: Nov 2002
Posts: 122
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From: Colorado
No Mufflers, is it illegal?
Just curious, I have seen some posts referring to having the mufflers removed as being illegal. I asked the guy who did mine and he said that it wasn't. The cat is stock and was not touched, everything in cat back. I guess it could depend on where you live. I am in Colorado Springs. Thanks for any info, Levi
02 F150 4x4 5.4 V8, auto, 3.55 limited slip, sport, 17" wheels, cat back duals with NO MUFFLER...
02 F150 4x4 5.4 V8, auto, 3.55 limited slip, sport, 17" wheels, cat back duals with NO MUFFLER...
Senior User
Joined: Dec 2002
Posts: 192
Likes: 0
From: Shamokin USA
No Mufflers, is it illegal?
Check with your state inspection station. Any service shop that does state inspections can tell you. Laws vary from state to state. In PA, it is illegal to run without mufflers. Some towns also have noise ordinances too.
Jimmie
2003 F250SD XLT SC SB 4.11LS 4X4 ESOF
Jimmie
2003 F250SD XLT SC SB 4.11LS 4X4 ESOF
New User
Joined: Jan 2003
Posts: 3
Likes: 0
No Mufflers, is it illegal?
it is illegal not to have mufflers in WV, i got inspected last month and i was very lucky, i pulled in the garage and the rumble was unbelievable it got everyones attn. the first thing he said was "does this thing have mufflers", i said yes its that new flowmaster american thunder system, but he gets down checks anyway, i was lucky because he was looking for a muffler so hard he must have forgot to check that both my cats were gone lol
1995 F-150 5.0
Flowmaster 40 series
no cats exit both tips
in front of left rear tire
1995 F-150 5.0
Flowmaster 40 series
no cats exit both tips
in front of left rear tire
Senior User
Joined: Feb 2003
Posts: 175
Likes: 0
From: West Virginia
No Mufflers, is it illegal?
In most places its illegal, but no matter what state you live in if your out in the boonies like me, no one will care. They will be happy just to get the money to inspect your vehicle. I have straitpipes on my truck and it has passed for a long time...
Senior User
Joined: Dec 2001
Posts: 378
Likes: 0
No Mufflers, is it illegal?
here in new jersey not only is it illegal to run no mufflers, any vehicle that is newer than 1975 is mandated to run cats. Its a real joke here. Heck they failed me one time for running the summit racing brand turbos!!!! go figure...and they are QUIET
regards
Ben
regards
Ben
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Elder User
Joined: Feb 2002
Posts: 987
Likes: 2
From: East Bend, Carolina, U.S
No Mufflers, is it illegal?
I do know that there are quite a lot of trucks that weighed enough even into the late seventies that were built from Ford without cats, so where do they fall in New Jersey's emissions checklist? I have a 1976 F100 that came with a smog pump only without cats from Ford. It even has a Non Catylist sticker in the door jamb. It would be pretty hard to convince someone like me to put them on a vehicle that never had them. They way I understand the emissions laws is that the vehicle has to meet the specs of the year of manufacture and be equipped with equipment that meets the original specs.
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Senior User
Joined: Jun 2002
Posts: 252
Likes: 0
From: Vancouver - BC - Canada
No Mufflers, is it illegal?
Get the Electric Exhaust Cut-Outs from Dougs Headers and let us know how it turns out 
Senior User
Joined: Jan 2003
Posts: 216
Likes: 1
No Mufflers, is it illegal?
i'm from iowa and no one really cares out here supposedly it's not illegal as long as you keep the cat(s), i've got none and neither do many other people i know...must depend on the state
supposedly it's not illegal as long as you keep the cat(s), i've got none and neither do many other people i know...must depend on the state
Lead Driver
Joined: Feb 2003
Posts: 8,140
Likes: 4
From: Oak Harbor, OH
No Mufflers, is it illegal?
Most newer vehicles have so much restgriction in just that cats alone that you can remove the mufflers and notice little differance. We put a straightpip on my dads '88 club wagon it's just loud enough to hear but not loud enough to cause a distubance.
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