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 ]

 

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

 

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.

 

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.

 

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

 

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.

 

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

 

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

 

Dyno. Gready is spelled Greddy.

Spiro

 

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 ]

 

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

 

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

 

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

 

i completely agree

 

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

 

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???

 

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

 

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.

 

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.

 

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.