Please help me on this,(2002 dodge dakota 3.9 v6 4x4) I was talking to someone and they said I should get a high flow cat, would it be better to keep the stock cat or get the high flow, before I was just going to get the flowmaster 40 1 in 2 out, also how many cats does the 02 dakota 3.9 have and if I do decide to get high flow will I have to replace each stock cat with a high flow, I would really like some help on what to do, also what do you think about just gutting the stock cats?

 

Should only be one cat and i think the high flow would help with power.

 

i went with a spintech highflow cat, best exhaust mod that I have done.

 

I wouldn't gut the Cat. myself. Your truck should only have one Cat. converter. If you're thinking of replacing the converter, definitely get a highflow one. I suggest a Magnaflow HighFlow Catalytic Converter.

As for your muffler. The Flowmaster 40 series are a very good choice, however, keep in mind that the lower number in series you go (30, 20) the louder the exhaust will be, so if you want a bit more racket, go down a series. I'm not very well versed yet on the effect of the dual out or single out, so I can't comment on that.

Link to the Magnaflow High Flow converter:

http://www.jcwhitney.com/universal-c.../p2017955.jcwx

 

what determined on how many cats the truck had when it was being built? cuz i have 2 or3 or some crap like that. i heard if the truck got a califonia emissions package it got loaded with cats and all others got 1, is this true? and can i take off the cats and just run 1?

 

some do have more cats than others. i had one real cat under the passanger seat. the small ones off the manifolds are the pre-cats, dont remove thoes. the other ones yes, as long as you dont have emissions testing.

 

I get the impression that California is real strict on emissions, but I don't think that affects how many Cats. you have. I want to say you only have 1 Cat. per tail pipe. Same with mufflers.

 

I ditched my cat. If you're industrious, run a 2-1/2 pipe straight through the center of a gutted out cat. And for inspection have a half decent cat lying around