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Thread: Cats
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post #2 of (permalink) Old 03-25-2004, 09:44 PM
bowtie_guy
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Re: Cats

What type of engine do you have??

A 5.7 litre will have true duals into the stock muffler then turns into a single.

A 5.0 litre will have the y pipe going into one cat and so on.

I have a 350 but took off the exhaust and install new pipe from the manifold back. For cats I bought two magnaflow cats. You can get an awsome deal from performance peddler. Search the e-bay store for the name. Real good prices.

After doing this all and keeping all 4 o2 sensors the ecm had no problems and no SES light came on.

Up here it doesn't matter but that's what I'd do if I were you. If you are limited by laws then I guess you would have to find an aftermarket y pipe.
 
 
 
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