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Forum namePerformance/Engine
Topic subjectHigh Flow catalytic converters
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i5&topic_id=11189
11189, High Flow catalytic converters
Posted by VX100, Jan-02-02 01:27 PM
Ok, I'm a wimp, I'd rather look into a high flow cat converter than a test pipe, so shoot me :)

What high flow cats are out there? (Besides Random Technologies, RRE's cat with no flanges) Are there others available besides these two?

Does anyone have any experience with either of these two (are they straight through? How much more SHOULD they flow compared to a stock one?) or any other high flow cats?

Any info would be good, for some strange reason I'm thinking about one of these for the future. Something about my car not being fast enough.
11190, RE: High Flow catalytic converters
Posted by randy, Jan-02-02 02:32 PM
I have pacesetter. Bolt-on $100.
11191, RE: High Flow catalytic converters
Posted by Michael_97RS, Jan-02-02 03:45 PM
AHP has bolt on for GS-T, so you would need to cut and weld the flange at a different angle.

I talked to them about my custom piping and exhaust and they said they would make a set up for NT high flow cat if they had astock cat to get the angles off of, same with cat-back piping.

"The fastest draw is when the sword never leaves the scabbard,
The strongest way to block, is never to provoke a blow,
And the cleanest cut is the one withheld."

Michael J. Kulaga
e-mail: Michael_97RS@2gntDSM.zzn.com aol IM: MJKulga
http://highlander.dsmpower.com/

All Motor Beast in the Making

Injen CAI, 55mm TB, Hooker 4-1 Stepped Header, GS-T Muffler, AFX UDP, S-AFC, 8.5mm Magnecor Wires, SS Clutch Line, NRG Susp. Motor Mount Ins., FU/RU/RL STBs, TSW Blade 17x7.5, Bridgestone Potenza RE730 215/45ZR-17. Front KVR Cross-Drilled Rotors and Carbon Fiber Pads

To Be Installed: Ported/Polished Intake Manifold, Rear disc brake conversion kit, SS Brake Lines, Rear KVR Cross Drilled Rotors and KVR Carbon Fiber Kevlar Pads
11192, RE: High Flow catalytic converters
Posted by eclipzGST, Jan-02-02 04:24 PM
<they would make a set up for NT high flow cat if they had astock cat to get the angles off of, same with cat-back piping.>

Cat back piping for a GST is a direct bolt on for a NT. Cat is probally also the same.

-Tony 98'GST



http://eclipzgst.dyndns.org
AIM: turboclipz or YNOT420247
11193, RE: High Flow catalytic converters
Posted by MuRiX, Jan-02-02 10:31 PM
Cat is the same.

Go to any muffler shop and see if they sell one. A lot of them do.

Oh, I wimped out as well. I am running a 2.5" dp, 2.5" Random Tech cat, and a 2.77" exhaust. I actually want to pass emissions in GA. Of course it failed anyway. :(
11194, RE: High Flow catalytic converters
Posted by BlackOZ, Jan-03-02 12:30 AM
You can get an OBX for $50, direct replacement.


11195, RE: High Flow catalytic converters
Posted by Avenger, Jan-03-02 01:09 AM
Could you guys post where you bought yours from? It would be helpful. Thanks.
11196, RE: High Flow catalytic converters
Posted by DarkOne, Jan-03-02 02:48 AM
I bought a CatCo high flow converter from a local muffler shop. 2.5" .. big sucker. Passed emissions with it twice now.
11197, RE: High Flow catalytic converters
Posted by Michael_97RS, Jan-03-02 01:42 PM
I thought the flange ate the rear of the cta was at a different angle between the NT and GS-T? huh... must be loosing my mind.

"The fastest draw is when the sword never leaves the scabbard,
The strongest way to block, is never to provoke a blow,
And the cleanest cut is the one withheld."

Michael J. Kulaga
e-mail: Michael_97RS@2gntDSM.zzn.com aol IM: MJKulga
http://highlander.dsmpower.com/

All Motor Beast in the Making

Injen CAI, 55mm TB, Hooker 4-1 Stepped Header, GS-T Muffler, AFX UDP, S-AFC, 8.5mm Magnecor Wires, SS Clutch Line, NRG Susp. Motor Mount Ins., FU/RU/RL STBs, TSW Blade 17x7.5, Bridgestone Potenza RE730 215/45ZR-17. Front KVR Cross-Drilled Rotors and Carbon Fiber Pads

To Be Installed: Ported/Polished Intake Manifold, Rear disc brake conversion kit, SS Brake Lines, Rear KVR Cross Drilled Rotors and KVR Carbon Fiber Kevlar Pads
11198, RE: High Flow catalytic converters
Posted by 2bFaster, Jan-03-02 02:02 PM
Okay Im from Iowa and we dont have emission testing.(atleast thats to my knowledge *wink*wink) Is it safe to just remove and drill out the cat or modify it some way with a straight pipe, and then reinstall it??? Will I get much out of this or is it just a lot of work. 97 RS, Iceman CAI, Mozart 5" muff... Im not worried about the cops just my engine...
11199, RE: High Flow catalytic converters
Posted by Stan2gnt, Jan-03-02 04:04 PM
GST cat is different. The flange to the downpipe is at a different angle. Has to be cut and re-welded. I have a 2.5" cat from Extreme Motorsports. Its just a generic cat with true 2.5" openings.
11200, RE: High Flow catalytic converters
Posted by BlackOZ, Jan-04-02 12:21 AM
I just got an OBX on ebay for $61. Sorry if I was ebattling with any of you!


11201, RE: High Flow catalytic converters
Posted by JasonESi_T, Jan-04-02 01:43 AM
I just bid on one of those myself too.

The auction isn't up for another couple of days, so I hope none of you studs gets into a ebid battle with me. I'm the bidder at jboltz@warpnet.net. Jut wait for the next one two days after that. They keep reselling them one after the other. We can all corner the market on OBX high flow cats at a cheap price! (heheh)
11202, RE: High Flow catalytic converters
Posted by Michael_97RS, Jan-04-02 01:22 AM
Thanks Stan, I thought so.

"The fastest draw is when the sword never leaves the scabbard,
The strongest way to block, is never to provoke a blow,
And the cleanest cut is the one withheld."

Michael J. Kulaga
e-mail: Michael_97RS@2gntDSM.zzn.com aol IM: MJKulga
http://highlander.dsmpower.com/

All Motor Beast in the Making

Injen CAI, 55mm TB, Hooker 4-1 Stepped Header, GS-T Muffler, AFX UDP, S-AFC, 8.5mm Magnecor Wires, SS Clutch Line, NRG Susp. Motor Mount Ins., FU/RU/RL STBs, TSW Blade 17x7.5, Bridgestone Potenza RE730 215/45ZR-17. Front KVR Cross-Drilled Rotors and Carbon Fiber Pads

To Be Installed: Ported/Polished Intake Manifold, Rear disc brake conversion kit, SS Brake Lines, Rear KVR Cross Drilled Rotors and KVR Carbon Fiber Kevlar Pads
11203, RE: High Flow catalytic converters
Posted by 1TuffRS, Jan-04-02 05:43 AM
is it still possible to shoot flames out the exhaust if you have a high flow cat versus a test pipe (i know, i know). I mean with the use of a rev limiter like I have on my bike.
11204, How about airmass?
Posted by VX100, Jan-04-02 06:15 AM
Did some checking, and it looks like airmass makes a bolt on high flow cat for our cars, that is if the info I got is correct.

About the flames from the exhaust, I doubt it. That would defenitely cook the cat, and it would probably snuff out the flames before they reached the muffler.



11205, RE: How about airmass?
Posted by eclipzGST, Jan-06-02 08:14 PM
"cook the cat" I like mine rare with pork fried rice :)

-Tony 98'GST



http://eclipzgst.dyndns.org
AIM: turboclipz or YNOT420247