MikesEJ1

Got a 93 civic lx sedan as my daily,i noticed all the exhaust pipes are new,but the shop that did it deleted the catalytic converter.They just welded in what looks like a 2 inch pipe.My question:is there a power gain if any.I know 102 hp when the motor was new is not impressive at all lol.but hey its a auto and im able to chrip the tires if I really gun it lol just curious

Also do any d-series engines respond well to a cat delete?

slowDB7

it will make your car quite a bit louder, but little to no real increase in power

MikesEJ1

it is kinda loud for a stock style muffler

that_boy_sammy

Its not an agonizingly noticeable gain. But a tad bit since there is nothin restricting the air passing through the muffler. It also illegal and you just may be killing small animals here in the wilderness.

93egSLEEPER

Its a single cam. If you want power start saving for a swap. Not worth destroying the environment with a single for a .5hp gain. just my .02. Even on my 220whp B20V I run a cat. Gets rid of the "tinniy buzzy" sound and makes emissions easier to pass.

CO671

iTrader: (1)

Here's a little tip.
As long as your internals are stock (such as cams, valve train, block etc)
The following:
Intake (cold air, short ram, etc)
Exhaust (catback, whatever brand name you get)
Headers (4-1, 4-2-1, whatever)

You're just gaining sound, so the more mods, the louder your D-series is.

jbpnoman

Proven gains on a dyno, from just deleting the cat, are 1-2 whp. That's it. Not at all worth it.

purgat0ry

iTrader: (3)

Dude, you should be able to break the space / time barrier now with that setup...

No really...

Uh...

No, real gains
Most people do it because OMGJDMRICERBRO or they're too cheap to add one.

MikesEJ1

thanks,thats all i wanted to know

MikesEJ1

also for people saying i'm destroying the environment and junk i did not modify the car like this.I bought it that way for....$700
thats not on me dudes,its the previous owners deal

doctorake

Buy a high flow replacement cat and have an shop weld it in.