Was thinking bout getting straight pipes for my 5.3. Have a bunch of friends that have this and have never got pulled over, im still not sure if theyre legal. Is it a secondary offense?
I would put the cats on anyways....true straight pipes are actually quite painful to listen to, especially when header back pressure causes the gun-shot like pop. Sure it's great on a drag car, but I wouldn't want to scream along without something restraining the noise.
To answer your question though...I believe it varies as with jurisdiction, and then of course you have to take the 'friendliness' of the police into account.
I'd call the DOT in Nebraska and find out....I'd get pulled over in a second in Cleveland, even if it is legal with cats in Ohio (about 85% sure of this). The DOT will have rules based on emissions, so I'd think you'd be fine if you kept the cats. I don't see a plains state being too hard on noise level.
I live in Michigan and i run long tubes, straights, no cats, glasspacks in that order. Loud as hell and its legal. Could get a noise complaint. but HP gains are lovely
I did a "ride along" with Nebraska State Patrol a few years back....and we were giving warnings to people with defective mufflers. So yeah.....if you choose to do it then you will probably just get a "fix it ticket".
The actual likelihood of getting pulled over and checked is pretty much slim to none unless it's insanely loud. With cats and cast manifolds.... it won't be.
True. I have a Naturally Aspirated Furd V8 Diesel with dual straight pipes.......it is stupid loud. My dog can hear me coming from over 5 miles away without WOT. Never got into any trouble in any state that be been through (NE, SD, WY, ND).....but I never got caught doing anything wrong like speeding or no turn signal either.
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