first off Are headers worth it on our cars ...

second i am putting the afc2 and the ypipe in next week how much of a gain should i expect and anything i should look out for thanks guys

 

depends if your car is fed spec or cali spec. It will give you more power but it'll make more of a difference on the cali-spec because the pre-cats are in the headers instead of the y-pipe like in fed-spec.

I'm not to sure what gain there is with the y-pipe but it will most certainly be a noticeable one.

 

expect no gain.that way you'll be alot happier with what you get