High Flow cat

MikeUK · Post by **MikeUK** » March 23rd, 2004, 2:24 pm

Where sells high flow cats? Whats every one else using and how have they been?

Id de-Cat but my car would never pass an MOT (Keeping it Legal)

Cheers

babyblueMX3 · Post by **babyblueMX3** » March 23rd, 2004, 3:13 pm

summitracing sells some catco universel cat converter...i bought mine over there..works great...don't know if it inprove performance though

2.5mx3 · Post by **2.5mx3** » March 23rd, 2004, 3:25 pm

I put in a Catco Hi-Flo Cat a few months ago -- purchased from Summit Racing -- and the only difference I noticed was a slight change in the exhaust note.

As for performance, I really can't report any seat-of-the pants increase. Maybe 1-2 hp if I put in on the dyno?

TsiMiata · Post by **TsiMiata** » March 23rd, 2004, 4:06 pm

The high flow cat companies claim an 8% increase in flow. I think your better off buying a bigger cat and necking it down for the increase in flow. IE: if you have 2 1/4" piping get a 2 1/2" cat.

mitmaks · Post by **mitmaks** » March 27th, 2004, 5:41 pm

what about test pipe/ i see them on ebay all the time

TsiMiata · Post by **TsiMiata** » March 27th, 2004, 9:56 pm

Test pipe will flow more for sure. Only two worries with it.

1. If you have to pass emissions its not really an option

2. Our cars can get a buzzy exhaust note with no cat. Having a cat mellows down the tone some, giving it a better sound.

LLCoolWas · Post by **LLCoolWas** » March 30th, 2004, 3:15 pm

i have a catco cat... its a little better... definatly better than stock

Nallboy · Post by **Nallboy** » March 30th, 2004, 3:57 pm

What exhaust do you guys recommend for the KL-ZE. I've noticed quite a few different setups. Some had 2.5", but most had 2.25". Is cat-back the way to go? I don't have emissions test here in FL, so I'm not worried about any of that.

TsiMiata · Post by **TsiMiata** » March 30th, 2004, 5:04 pm

personal preference really. You can get a 2 1/4" cat back from pacesetter for $200 delivered. I think anything 2.5" is going to be custom.

TsiMiata · Post by **TsiMiata** » March 31st, 2004, 2:22 pm

Just an FYI I purchased a 2.5" magnaflow(also known as carsound) cat off ebay for $55 shipped. It was their series 94100. That is the shorter of their universal cats.

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&category=33629&item=2462953016&sspagename=STRK%3AMEBWN%3AIT

This is for my ZE swap. I'm going to be running hotshot headers(2.5") with this cat and a pacesetter catback(2.25").

MX-3.com

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