Dyno_CL-S

i just got intake, headers and cat back exahust and i was wondering should i go ahead and do it? Will i lose hp/torque??

[ 07-25-2001: Message edited by: Dyno_CL-S ]

Fabvsix

I remember reading something about that and I do think you will mess with the low end torqe (sp)....do a search !

spiroh

Are you talking about gutting it? If so, your exhaust will sound raspy. I did it on my Integra, and it didnt sound the same when I had the I/h/e mods doen to it.

Dyno_CL-S

i just did a search and the only result was this thread so i guess i'm the first to bring it up, i guess.

Dyno_CL-S

i have the i/h/e but would i gain hp or torque from empting out the cat??? Is it worth while to do?

spiroh

I did gain HP. To me the raspy noise, and the fact that you wont pass the emission test would make me think twice. I would not do it again.

charliemike

Does your state do emissions testing?

If so, you might want to consider that fact ... I don't know if you'll automatically fail a test for having a fubared cat, but you might want to do some research. If lived in MD and failed, you'd have to buy a new cat and have it installed =o

Dyno_CL-S

RASPY as in weed-eater sound? So i would sound like a buzzy civic? thank god i haven't done it yet.

spiroh

Dyno. Gready is spelled Greddy.

Spiro

Dyno_CL-S

They did up to a year ago and they do not anymore. Besides, nothing a good old 20 dollar bill can't handle . I just dont want it sounding wack. I'm preety sure the sound will be deep.

[ 07-25-2001: Message edited by: Dyno_CL-S ]

spiroh

It will sound better then putting a test pipe, but it will still sound raspy. I speak from experience.

DtEW

It will not be worth your while to do in your current state of mod.

And even were you in a position where the catalytic converters were impeding exhaust flow, it would be better to build a "test pipe" (a piece of pipe to replace the catalytic converter) to put in place so that you don't have to destroy expensive parts ($400-$600?), leave no options should you decide that a ghetto-loud CL-S is moronic, and when you have to get smogged.

Before anybody goes on insisting how "backpressure" is good for producing torque, let me pre-empt you by letting you in on a little fact: the best exhaust is no exhaust, and no backpressure is ever good. The observed movement of power up the rev-band (sometimes beyond the rev-band ) as the exhaust diameter is increased is due to thermodynamic/velocity effects.

If you really insist on disagreeing, read my explanation first: http://www.is300.net/cgi-bin/ubb/ult...c&f=2&t=000700

dlew308

Don't do it, not worth it. If you must, get a straight pipe instead. Now if you're boosting, that's another topic....

MCHM3

i completely agree

cl-driver

I agree. It's not worth the trouble and expense.

[VTEC]TL

Since I'm running forced induction I was also thinking of gutting my cat. I just don't want it to sound like shit.

Also, Mchtypes, does your sig apply to your CL-S??? Twin turbo???

JRock

If you empty the cat, won't you fail emissions testing?

Dyno_CL-S

Corect! I would but here in FLA they did away with emissions test. Like i said inj the previous post, theres always a way to get around it.

e harmon

I had an 88 Integra with an emptied cat. It still passed emissions easily, even with 130k on the odo. BTW, congrats on the new ride, Dyno.

dlew308

Don't empty it, get a straight pipe for track use, put the heat shield over it for looks...why waste a good cat...they aint cheap. straight pipe is cheap. i had one for my turbo'd lude but it was too loud since I already had 2.5" exhaust piping...i slapped on a larger cat instead.