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View Full Version : high-flow cats legal?


AZEVO
10-08-2005, 10:43 AM
i'm thinking of modding my 2005 evo after i finish break in. i want to keep it legal as possible. the question i have is are high flow cats legal? or should i just stick with just a catback? what's the hp difference from a turboback with high flow cat and a good catback? only mods i'm thinking of is works p2 flash, catback or turboback, and works drop in. thanks for the help.
Skiracer
10-08-2005, 11:16 AM
Technically, tampering with the OEM cat is not legal...Even if you just move it 1" down from the factory location, its not legal. However, depends on how detailed the person is at looking at the car .
evoCS
10-08-2005, 11:37 AM
WORKS is coming out with a "StealthCat" that mates a stock core with 3" openings. That way there's no necking down from larger downpipes and catbacks. It's not a high-flow cat but it's still probably not perfectly legal in the strictest sense. It's down personal choice I suppose.
EVOla_VIRUS
10-08-2005, 12:15 PM
Funny thing is many hfc's look legal. Works is a perfect example. It would take a trained eye for smog cops to know....if your emmisions are good with the cat, then your golden imo
500whp
10-10-2005, 05:03 PM
anything u do to your car is illegal!
EvoPwr
10-10-2005, 05:14 PM
anything u do to your car is illegal!


not a cat-back exhaust that doesnt exceed decibel limit
genrec
10-10-2005, 06:14 PM
anything u do to your car is illegal!


not a cat-back exhaust that doesnt exceed decibel limit


WRONG..decibels or not you gettin ticket mofo!!!!
itsnino
10-10-2005, 07:29 PM
anything u do to your car is illegal!


not a cat-back exhaust that doesnt exceed decibel limit


WRONG..decibels or not you gettin ticket mofo!!!!

sounds like a fuckin oinker there jeff... hahaha
EvoPwr
10-10-2005, 07:30 PM
anything u do to your car is illegal!


not a cat-back exhaust that doesnt exceed decibel limit


WRONG..decibels or not you gettin ticket mofo!!!!


so what! doesnt mean it is illegal so you sir are WRONG! people have gotten a ticket for stock exhaust.
CACalomino
10-25-2005, 09:40 PM
In CA u can't change teh Cat unless its over 50K miles, is not working correctly also if u do change it it has to be a OBDII C.A.R.B aproved cat or it will not pass CA smog natzi's. The only company that makes one its Magnaflow they have universal OBD2 cats.

-Chris
Luscious
11-16-2005, 12:40 PM
anything u do to your car is illegal!


exactly. A cop can write your ass up for seemingly anything it seems....
Macky
11-16-2005, 09:25 PM
anything u do to your car is illegal!


exactly. A cop can write your ass up for seemingly anything it seems....


sad but true
cascosblueevo
11-16-2005, 10:23 PM
anything u do to your car is illegal!

only way to put it
gen4k20a2
11-17-2005, 10:52 AM
anything u do to your car is illegal!


not a cat-back exhaust that doesnt exceed decibel limit


WRONG..decibels or not you gettin ticket mofo!!!!



sema actually promotes this law because it is just a ticket to go see the ref and to prove the exhaust is legal..
after that all you gotta do is flash the slip proving the sound level and youre set. (ive done this many times in my RSX)
rammsteinmatt
11-17-2005, 03:11 PM
when you get an uncorrectible exhaust ticket, what then?
ultraflip
11-17-2005, 03:18 PM
i fought my "uncorrectable" ticket in court and got it corrected... what now?
rammsteinmatt
11-17-2005, 05:06 PM
i fought my "uncorrectable" ticket in court and got it corrected... what now?


cops cant keep the story straight. lets look at the word: un, a prefix having a similar meaning to "not". substitute the new word in, so we have: uncorrectable = not correctable.

so thats whats now