.:HSTuners::

09-18-2004, 11:41 PM

So after I/H/E im wondering whats next as far as n/a mods for most hp gain? I heard getting a high-flow cat will give a little but im not sure about it.

IALuder · 09-19-2004, 10:57 AM

high flow cat work. i got like 2-5HP more out of mine.

might look into getting pulleys cams.

*pdiggitydogg* · 09-19-2004, 10:57 AM

pulleys no
how about d16a pistons (10.4:1 compression) and a cam

Civic_RedLine · 09-19-2004, 05:29 PM

chill on the pulleys if you got a high-powered sound system (meaning just an aftermarket stereo).
Hey will the high flow cat replace my greddy muffler's cat piece?

*pdiggitydogg* · 09-19-2004, 06:25 PM

high flow cat replaces the oem catalyic converter. All street legal exhausts come as cat-back pieces so you never touched your cat, except to unbolt it from your b-pipe.

AkimboStylee · 09-19-2004, 07:41 PM

well thats odd, cause the invidia exhaust i ordered for my civic, comes with an inline high flow cat, heres a picture:Honda Civic Invidia SUS304 Exhaust System

invidia

*pdiggitydogg* · 09-19-2004, 08:06 PM

are you sure its not just a resonator?
no street-legal aftermarket exhaust should come w/ a cat since its gov't regulated

this image shows the resonator in the mid section

*AzCivic* · 09-19-2004, 08:33 PM

yeah, I've never seen an exhaust come w/ a high flow cat. resonators kinda look like cats.

that comptech exhaust looks nice though.

ebpda9 · 09-19-2004, 08:54 PM

it is just the resonator.

JDMFantasy2k · 09-19-2004, 09:11 PM

Quote:

Originally posted by AzCivic

that comptech exhaust looks nice though.

SPLAT*comptech*SPLAT

they have such nice products... only wish i had the money for them

Civic_RedLine · 09-20-2004, 11:34 AM

so a high-flow cat or resonator? Ive checked on a high flow, theyre pretty cheap. below one-hundred which means a mod that im interested in. I just need the full specs. will it pass emissions? will it replace any of my performance parts i added? like the greddy evo-2 catback exhaust

*pdiggitydogg* · 09-20-2004, 04:08 PM

your exhaust setup probably (like 99% of them do) has a resonator already built into it...theyre like in-line mufflers.
The ebay cats are junk...theyre more of a test pipe than anything and shouldnt be used in place of the cat. It will, almost definately, not pass emissions.
If you want one, I suggest catco or carsound/magnaflow. Both of those need to have flanges welding on them...which of course raises the price. These high-flow cats MAY pass state laws, but you should call up your state ref and ask first.

No, it will not replace anything but the oem cat. If you look under the car @ the header you will see a bulged pipe (probably has heat shielding on it)...thats your cat. It is between the header and exhaust b-pipe. There is an o2 sensor inside (which would need to be added if you went w/ an aftermarket unit from carsound/catco)...which still may cause some to throw a cel because there is a lot more flow through the aftermarket, thus giving a reading that would be off from stock. -> O2 simulator or OBD1 conversion would fix that

Civic_RedLine · 09-21-2004, 11:39 PM

gotcha

09-18-2004, 11:41 PM	#1
Victorystardrop Posts: n/a	Whats next? So after I/H/E im wondering whats next as far as n/a mods for most hp gain? I heard getting a high-flow cat will give a little but im not sure about it.

09-19-2004, 10:57 AM	#2
IALuder Registered User Join Date: Sep 2003 Location: Des Moines IA Age: 38 Posts: 7,908	high flow cat work. i got like 2-5HP more out of mine. might look into getting pulleys cams. __________________ 93 Si H23vtec......soon to be 12lbs 95 Civic EX....automatic DD if you cant dazzle them with your brillance, baffle them with your bullshit.

09-19-2004, 07:41 PM	#6
AkimboStylee Registered User Join Date: Aug 2002 Location: The Bay which holds no water, Palm Bay, Fl Age: 38 Posts: 1,688	well thats odd well thats odd, cause the invidia exhaust i ordered for my civic, comes with an inline high flow cat, heres a picture:Honda Civic Invidia SUS304 Exhaust System invidia __________________ A very good quote : " I have many vices in my life, and those keep me from perfection, and not being perfect makes me a human being with morals" -Anonymous

09-19-2004, 08:54 PM	#9
ebpda9 Repost Wagon Join Date: Dec 2001 Location: over here Age: 43 Posts: 17,266	it is just the resonator. __________________

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09-19-2004, 10:57 AM	#3
pdiggitydogg Yahoo Watashi wa kattaze! Join Date: May 2002 Location: Meanwhile, up in The D... Age: 40 Posts: 10,579	pulleys no how about d16a pistons (10.4:1 compression) and a cam

09-19-2004, 05:29 PM	#4
Civic_RedLine 3rd Gear Join Date: Jul 2004 Location: Los Angeles Posts: 352	chill on the pulleys if you got a high-powered sound system (meaning just an aftermarket stereo). Hey will the high flow cat replace my greddy muffler's cat piece?

09-19-2004, 06:25 PM	#5
pdiggitydogg Yahoo Watashi wa kattaze! Join Date: May 2002 Location: Meanwhile, up in The D... Age: 40 Posts: 10,579	high flow cat replaces the oem catalyic converter. All street legal exhausts come as cat-back pieces so you never touched your cat, except to unbolt it from your b-pipe.

09-19-2004, 08:06 PM	#7
pdiggitydogg Yahoo Watashi wa kattaze! Join Date: May 2002 Location: Meanwhile, up in The D... Age: 40 Posts: 10,579	are you sure its not just a resonator? no street-legal aftermarket exhaust should come w/ a cat since its gov't regulated this image shows the resonator in the mid section

09-19-2004, 08:33 PM	#8
AzCivic Moderator Join Date: Feb 2002 Location: Az Age: 43 Posts: 3,804	yeah, I've never seen an exhaust come w/ a high flow cat. resonators kinda look like cats. that comptech exhaust looks nice though.

09-20-2004, 11:34 AM	#11
Civic_RedLine 3rd Gear Join Date: Jul 2004 Location: Los Angeles Posts: 352	so a high-flow cat or resonator? Ive checked on a high flow, theyre pretty cheap. below one-hundred which means a mod that im interested in. I just need the full specs. will it pass emissions? will it replace any of my performance parts i added? like the greddy evo-2 catback exhaust

09-20-2004, 04:08 PM	#12
pdiggitydogg Yahoo Watashi wa kattaze! Join Date: May 2002 Location: Meanwhile, up in The D... Age: 40 Posts: 10,579	your exhaust setup probably (like 99% of them do) has a resonator already built into it...theyre like in-line mufflers. The ebay cats are junk...theyre more of a test pipe than anything and shouldnt be used in place of the cat. It will, almost definately, not pass emissions. If you want one, I suggest catco or carsound/magnaflow. Both of those need to have flanges welding on them...which of course raises the price. These high-flow cats MAY pass state laws, but you should call up your state ref and ask first. No, it will not replace anything but the oem cat. If you look under the car @ the header you will see a bulged pipe (probably has heat shielding on it)...thats your cat. It is between the header and exhaust b-pipe. There is an o2 sensor inside (which would need to be added if you went w/ an aftermarket unit from carsound/catco)...which still may cause some to throw a cel because there is a lot more flow through the aftermarket, thus giving a reading that would be off from stock. -> O2 simulator or OBD1 conversion would fix that

09-21-2004, 11:39 PM	#13
Civic_RedLine 3rd Gear Join Date: Jul 2004 Location: Los Angeles Posts: 352	gotcha