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Which Catalytic Converter to buy

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Old 07-09-2004, 09:41 PM
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Car: 92 Z28
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Which Catalytic Converter to buy

I failed emissions testing 5 times. Everyone needs a hobby. Anyway, I had to talk to an EPA offical who after looking at all the failures stated that my 9 month old universal catalytic converter that is welded on and the shop that put it on won't fix is not working. So; if I go for a direct fit converter as suggested by the EPA guy I will have to buy a new Y-pipe. So what would be a good alternative? What would be amother slip on type converter, that will work well with my 92 RS, 305 TBI motor. Thanks for any suggestions. Scott.
Old 07-09-2004, 09:57 PM
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I went with a direct fit Catco Cat. Just make sure you order it for your model year and application.

You learned why universal ones don't always work for everyone.
Old 07-10-2004, 11:41 AM
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Car: '89 GTA 9,000 MILES
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Axle/Gears: 3.27 9 bolt
Do not I repeat do not buy anything else, the universal cat is the way most people go due to the prohibited cost of a direct replacement. Universal or direct fit , same filtering media.

Get a couple cans of this (pass emissions stuff)....help me out Guys ... on the name of the stuff, I know many have used it on this board and it works too. Simply dump it in and go to the testing station.

You might want to look into exactly what wasn't passing, it could be as simple as a tune up....but you definitely have something wrong with your car, if A/F ratio is close and in tune most will pass without a cat.

Last edited by Jetmeck; 07-10-2004 at 11:43 AM.
Old 07-10-2004, 01:01 PM
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Car: 92 Z28
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Transmission: 700R4
It failed on hydrocarbons. I did a very complete tune-up on it. I also tried the guarentee to pass (1 bottle), it did lower the HC but still did not pass.
Old 07-10-2004, 02:17 PM
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I always dump in "Clean Power"
Old 07-10-2004, 03:56 PM
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Don't think I'v heard of that. Were did you get it and whats it do?
Old 07-10-2004, 04:52 PM
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After my Engine Swap, I passed two E-Check Emission tests in Ohio before moving to Florida. Also note I left all the emission equipent installed and had no problems, in fact the last time they gave it a quick pass check.

Last edited by DJP87Z28; 04-17-2006 at 01:30 PM.
Old 07-10-2004, 09:47 PM
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Originally posted by transporter
Don't think I'v heard of that. Were did you get it and whats it do?
Kragens or Autozone.

It's an octane booster that makes your engine temperarely run cleaner.
Old 08-26-2004, 08:45 PM
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Car: 87 IROC Z
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I think its called berrymans emissions test something. At autozone
Old 08-29-2004, 10:11 AM
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although it's possible, i would guess it is not your cat causing you to fail. sounds like something is messing with your tuning and the overly rich condition is overcoming your cat's capability burn off the hc's. have you given it a full tuneup? what kind of modifications, if any, have you done to the car?
Old 08-29-2004, 10:56 AM
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Car: 92 Z28
Engine: 305 TPI, Edelbrock headers, 3in Flowmaster exhaust
Transmission: 700R4
Guess is doesn't matter now. Lady talking on her cell phone and goes through light and hits drivers side front. Frame bent, sway bar, all suspension and brake on drivers side damaged. I loved that car.
Old 08-29-2004, 07:35 PM
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holy crap man thats terrible, my sincere condolences
Old 09-01-2004, 12:01 AM
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That sucks dude, stupid biotch!!!
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