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Catalytic Converter question

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Old 01-12-2011, 10:50 PM
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Default Catalytic Converter question

Those with L/T what cat are you running and still getting good sniffer results? I was looking into the Magnaflow 54959. anything else?

Joey J.
Old 01-13-2011, 12:14 AM
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i had a friend pass with kooks cats, we beat the **** out of the car before hand and got them nice and hot tho
Old 01-13-2011, 08:10 AM
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Magnaflow Cats do the trick i've heard.

I run Random Tech High-flow cats no problems at all. Never been asked for my carb number. They're expensive though.
Old 01-13-2011, 10:26 AM
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I run Thunder Bolt cats, they did a preatty good job !
Old 01-13-2011, 10:52 AM
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Awesome guys! Any more cat suggestions? i just dont want to buy something and weld it up and find out it doesnt work. Hey Vette 310, do you know the part number to those cats? and ConElite, any part#
Old 01-13-2011, 06:20 PM
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Originally Posted by SS4Luck
i had a friend pass with kooks cats, we beat the **** out of the car before hand and got them nice and hot tho
Same here. Passed, even with my 222/230 cam. That's on an LT1.
Old 01-13-2011, 08:01 PM
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Originally Posted by Spartan7
Same here. Passed, even with my 222/230 cam. That's on an LT1.
Do you know what part# they were or something close?
Old 01-14-2011, 08:22 AM
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Im keeping mine street legal so I bought the whole kit. It was around $800 but comes with both cats and y-pipe all stainless. Best part is it comes with a carb #

I didnt wanna deal with the hassle of changing set-ups or anything for Smog purposes. Once I throw on my Shorties, the whole set-up should be good enough.


Old 01-14-2011, 10:00 AM
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Those arent longtube cats....
Old 01-14-2011, 10:53 AM
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Originally Posted by 67RSCamaroVette
Those arent longtube cats....
No. but Random tech does sell Cats alone. not the bolt on version like mine.
Old 01-14-2011, 11:13 PM
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spun body catalytic converter:
Magnaflow 59959 Center/Center Cat 3" In/Out, better then the 54959.
You can get them for about $95 ea
Old 01-14-2011, 11:24 PM
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Originally Posted by 99Bluz28
spun body catalytic converter:
Magnaflow 59959 Center/Center Cat 3" In/Out, better then the 54959.
You can get them for about $95 ea
They are easy to find for $80.
Old 01-15-2011, 02:38 AM
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The only problem is that no one will ship to california. I have a friend that lives in Reno, Nevada. I might just have him order it. But yes i think those Magnaflow 59959 are the best bet right now
Old 01-15-2011, 07:11 PM
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Originally Posted by ramair21
The only problem is that no one will ship to california. I have a friend that lives in Reno, Nevada. I might just have him order it. But yes i think those Magnaflow 59959 are the best bet right now
Call them, they often will ship to Ca if you ask. That's what I did. Also, check some local suppliers, you can get them from a local shop or pick it up directly from Magnaflow here in SoCal at Will Call.
To save money you can buy it through an online company, but tell them you want to pick it up at Magnaflow Will Call directly.



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