tajabaho1

Hi, after reading some threads.......I'm totally confused.......

from what my little brain can deduce

exhaust = the muffler thinging and a pipe..........
but then theres a catalytic converter

so I want to change my exhaust.....but still be street legal and pass emissions
that means that the exhausts that are like 500-600 are only for the muffler and a pipe and the catalytic converter would be stock right?

so if then I hear that if you take out the cat, it be much faster......but then it wouldn't be street legal........so how do you make it street legal?

someone please explain to me....im totally confused

staticlag

if you remove any part of the factory emissions system, the "cat" or otherwise, it is illegal. There is no way to get around this.

Muffler + connecting pipe $500-$1000

hi flow cat or delete pipe $300-$500

headers ~$1000

so probably in the range of $2000 if you wanted a "full exhaust" system.

staticlag

But, a lot of people buy whatever they want, and when it comes time for a emissions check they swap back in their stock parts.

N rider89

what he said, also keep in mind no cat=loud

BoosTED

iTrader: (2)

Unless a person puts a nice resonator in the midpipe.

Fanman

And stinky.

Some states don't do a visual inspection, they just stick a sniffer in your tailpipe. So a hi-flow cat unit will allow you to pass. In Cali. they also do a visual inspection, but most mom & pop gas stations that are "smog test certified" won't know what a stock cat looks like.

tajabaho1

I see, so like when they sell stuff like B&B exhaust system, they are only talking about the muffler and midpipe right?

N rider89

^no, that would be Just muffler and connecter pipe i believe.

tajabaho1

so what is a mid pipe then? and what can I change to get the most performance without screwing up emissions?

d j

mid pipe would be the pipe that connects the cat back to the header minus the cat

superdon2

how will they know that i changed my cat-back exhaust?? because it's a bit louder? if so, why aren't lamborghinis being pulled-over because of their loud stock exhausts?

im confused..

staticlag

well the company name stamped into the side of it is a hint

TrochoidMagic

huh??? i'm stumped.

cops are not retards you know? neither are they deaf.

i think they would know how a regular import sports car sound like...and of course how a ferrari and lamborghini sound like.

sure those pure sports cars will be a bit louder...but they pay a lot higher taxes on those i assume. but at which rate...it should still pull under 95 decibels under low rpm range. there's a guideline as to whats acceptable and what isn't.

i had my honda referee'd at a local college, and its a straight through cannister and passed at 93db @3k rpm.

just some FYI. mod how you want, but stay under 95db at all cost...or be far from 90db to avoid the harassment in the first place.

TrochoidMagic

oh, and to add...if you own a lamborghini, most likely you won't give a rats *** about a ticket. and neither is a cop gonna chase you. if you got that much $$$, i'm sure you already know someone to take care of it for you.

the world isn't fair...where have you been?

faboo

Muffler's and resonators aren't involved in emissions...they have to do with sound level...u can change both as much as you like as long as it stays under the sound limit 95dB i think

cat's are apart of emissions...removing it is illegal...period...

its just that most states dont check for it and/or dont care...

to be legal..one needs a cat and to be under the sound limit...thats it...no confusion