GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat

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-   Performance, Brainstorming & Tuning (https://www.gmforum.com/performance-brainstorming-tuning-96/)
-   -   High flow cat (https://www.gmforum.com/performance-brainstorming-tuning-96/high-flow-cat-188900/)

Sol 05-19-2003 09:53 AM

High flow cat
 
I want to get one, but I don't know what would work best on my car.

I'm looking for best performance with least amount of $$$

willwren 05-19-2003 10:14 AM

Unlike mufflers, there really isn't a whole lotta difference between them. Some people just buy a larger stock cat from a larger car or truck. As long as it's rated for 'higher flow' and has the same inlet and outlet sizes (I think you're 2.25", but measure it), you should do fine.

Sol 05-19-2003 05:40 PM

Is there one brand out there that's more reliable than others?

egladman 05-19-2003 10:06 PM

I got mine on ebay for about 50 bucks. It's a catco convertor, but the flow is much better than the OEM convertor.

willwren 05-20-2003 01:02 AM

Autosound for me. Same price more or less, but purchased locally. Even magnaflow sells a cat, but you pay for the name on it.

Sol 05-20-2003 06:50 AM

All right, I'll check out both of those.

How is the installation with those?

macho_mike21 05-20-2003 04:36 PM

You might have to remove the O2 sensor, and i think its just taking a cutting torch to the pipe and then using a MIG welder to put the new one on. At least thats how it works on a muffler...

Kuhl 05-20-2003 04:38 PM

I dont even think some have to be welded, it seems they are made to bolt on for easier removal, but not sure...

macho_mike21 05-20-2003 04:43 PM

welding would give you that airtight seal with no excess noise though...

buzzbomber88le 05-20-2003 07:11 PM

Look on www.summitracing.com at catco catalytic convertors. like egladman said they are 50 bucks for a universal fit one. Thats what I'm getting...but it's a dream for now! I'm as broke as a stepped on cracker! :lol:


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