high flow cats

do high flow cats change the ??sound of ur exhaust by a bid difference

yeah, just a lil'db, depends on high flow cat u' got. (i.e. sports /racing/ street cat)

Well how do each one of them change the sound... you said it depends, but can you explain how so in each case? Thanks.

more flow is going to make it louder and more of a deep sound.

alright.. now, which one has the most air flow?... sport, steet, etc?

well i would belev the racing one would because racing exhaust is made for more flow.

or you can swap to what i call no-tech exhaust!

what does that mean?

quote:

ORIGINAL: get435

more flow is going to make it louder and more of a deep sound.

more rasp on a 420a... your going to want the restictive cayt to get the throat, for a bit more power and a lil more rasp bang it out.

I've got a GReddy EVO2 on my 420a and that thing has some major throat. lol :P

racing cat has more flow, and this thing will blow your muffler in low rpm.

quote:

ORIGINAL: mysterio2099

I've got a GReddy EVO2 on my 420a and that thing has some major throat. lol :P

Thats also because its a quality muffler with a baffle system. I have a dc sport round can and their is not backpressure or restrictions, I can see right though it. It give me 1/2 hp maybe over yours but i get some rasp over 3k.

on my car i dont have a cat, and it sounds pretty good, and i can still pass emissions

Man im telling ya no-tech exhaust ok we need a little back ground on that one.
My cuz has a kia yes i said kia and well he riped the muffler off so he had cat res and about 12" of pipe. It sounded good and i mean no backfire nothing sounded like it was made that way. so we go to get some food one day and the car got about 2X louder so we stoped well now he had ripe it off so there was cat 8" of pipe. to this day people many people tell him damn what have you done to that thing and he will tell them intake and no-tech exhaust and they look back and say man i got to get me one of those. LMAO

I remember you posting that story on another thread, lol, funny ****, wish I could have seen that Kia

its green has been keyed has some dents all around but sounds like it can stomp some ****. after i change my turbo we are going to make a custom turbo kit for it with my t25 lol.

Poor little Kia. And I never knew they came in green, I've always seen red and silver.. did he paint it?

I wish I knew how to make custom crap for my car

its not hard to custom make something for a car.. you just need to knwo what your doing and you must have all the supplies.. i'm thinkin about making a custom 2.5" exhaust for my eclipse spyder...thatd be fun. i already hadda make a custon rom air intake for it

Yeah, I don't have any tools or supplies to make something for my car.. even if I did I wouldn't know where to start, lol.

<-- Noob mechanic

quote:

ORIGINAL: 93eclipsegsx

on my car i dont have a cat, and it sounds pretty good, and i can still pass emissions

no cat? and you passed emissions? wow....how??

i guess my car is running in tip top shape. and those people at the emissions are supposed to check under the car with a mirror, and there were kids running it. so i guess they wanted my 20 bucks and off i went, laughing my a** off as i drove home because everybody was telling me that i was gonna fail.

that is one thing i love about texas no emissions testing at all no cat who cares no mulfer no problem texas ROCKS

im from texas, until some family problems and then i moved to ohio. i bought the car from a kid who lived in a county which didnt need emissions, but mine does. but i dont care, because i can pass