Headers and High-Flow Cat

[Loochy88]

hey man, dont throw a rod :D

[knowledgefreak]

The stock cat has a 3" in on it already and a 2 1/4 out i believe into that s shaped section.

If you go with a 3" cat it will be a larger cat and less restrictive obviously.

I was told by a shop that showed me in a part book for pacesetter that they have headers for the 3.8 is this true?

[jmorgan]

I just a cataco 3" high flow cat put on with a borla 3" ajustable cat back right now I dont have a plate in it. In a way it seems i have lost tq but in a way not. I think in a way not because now i dont take the car as high for example 2k is load enough for me before i got the exasght i was normaly taking up to 3k but it seems like it dosnt get to 3 k as fast as it did with the stock exasght but i can tell a big diffrence up top because yall know stock the car seems like its losing power past 5k not anymore

[slacker69]

I dont know why yall do 2 3" 90 degrees for the S pipe I had mine custom set so they are 2 45 degree angles so that there is half as much restriction there. My friend dynoed with the 2 3" 90 degree bends and with the 2 3" 45 degree bend the was a range from 3 to 5 hp differnce on the 2 runs

[knowledgefreak]

no kidding.. the more straight the better.

[shortdog273]

Yea I thought about getting the 45 degree pipe, but I didn't think the bend would be long enough. It's 3", so it's alot better than the stock 2.25" pipe.

[shortdog273]

I changed my mind. I'm gonna send my 90 degree pipes back to jcwhitney for 45 degree pipes. I thought of slacker said, and 45 degree pipes will definely work.