Which Magnaflow Cat to use?

Psychobroker · Post by **Psychobroker** » Mon Mar 01, 2004 9:14 am

Which one of these Magnaflow Catalytic Converters should I use for Magaflow's cat-back and why?

Psychobroker · Post by **Psychobroker** » Tue Mar 02, 2004 7:40 am

*post bump*Anyone have an idea of which one to use?

Psychobroker · Post by **Psychobroker** » Thu Mar 04, 2004 8:36 am

*Another post bump*

Jahntassa · Post by **Jahntassa** » Thu Mar 04, 2004 10:44 am

If you look at the descriptions, the only difference between the four is the pipe diameter. You just need to pick the one that fits the plumbing you've got.

MYKIDSGT · Post by **MYKIDSGT** » Thu Mar 04, 2004 12:53 pm

arent we 2 1/4 in and out, I might be wrong.just trying to help.

Psychobroker · Post by **Psychobroker** » Thu Mar 04, 2004 11:58 pm

Ahh ok, then should I try to match the stock piping before the cat, or the magnaflow cat-back?

Psychobroker · Post by **Psychobroker** » Wed Mar 10, 2004 6:51 am

*LAST BUMP*?So, 2.25" then?

savedbyzero · Post by **savedbyzero** » Wed Mar 10, 2004 7:08 am

Check out Catco high-flow cats as well.

Psychobroker · Post by **Psychobroker** » Thu Mar 11, 2004 12:17 am

ugh, i just want to know what size I should order...I want to stick w/ Magnaflow since it matched my exhaust Also, I read somewhere that our Vibes have TWO cats? Does this mean I have to buy two??

savedbyzero · Post by **savedbyzero** » Thu Mar 11, 2004 2:02 am

2.25" is the size you need. I believe that there is only 1 cat, and one resonator.

Psychobroker · Post by **Psychobroker** » Thu Mar 11, 2004 3:52 am

ok, thanks saved! Any idea what gains, if any, I could expect from a high-flow cat?

dmitri · Post by **dmitri** » Thu Mar 11, 2004 8:07 am

just jack it up and measure man. and no, its 1 cat

Psychobroker · Post by **Psychobroker** » Mon Mar 15, 2004 3:36 am

Easier said than done when, a) I don't have jack stands, b) nor ramps, c) nor a floor jack, d) very little free time.This is why I come to you guys for advice.

MadBill · Post by **MadBill** » Mon Mar 15, 2004 8:25 am

Quote, originally posted by Psychobroker Â»Easier said than done when, a) I don't have jack stands, b) nor ramps, c) nor a floor jack, d) very little free time.This is why I come to you guys for advice.Free advice is often worth just what you pay for it, Psycho! A few points:o Saved and Dimtri are wrong! (sorry guys) On the base engine there are definitely TWO cats! (and I'm 95% sure it's ditto on the GT) One is right at the exit of the header and the other is a short distance downstream, followed by a resonator and finally the muffler. Take your Vibe to a friendly garage for an oil change and get them to let you take a brief walk under the hoist and check for yourself. o That said, it would be quite hard to change the first cat, as it is practically a part of the header. o Also, in many jurisidictions it is illegal to change out a functioning cat.o Lastly, before removing the factory part, you should seek some unbiased assurances that the replacement will actually flow better!

Psychobroker · Post by **Psychobroker** » Mon Mar 15, 2004 8:56 am

Thank you MadBill!! You are the MAN, as usual!

cdFxer · Post by **cdFxer** » Tue Mar 23, 2004 3:03 pm

I asked ptuning for more information about the model they list. Here is what they say:[ Dear Customer,Thank you for your inquiry.You can gain some hp with a high flow cat. Keep in mind that the cat isuniversal fit, so that muffler shop will have to weld the cat to yourexisting system.Please contact us if you have any further questions.Sincerely,Performance Tuninghttp://www.ptuning.com"Low Price Guarantee"

Which Magnaflow Cat to use?

Which Magnaflow Cat to use?

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