I've done quite a bit of modding now... but now im considering more power!

im debating between taking out the pre-cat or putting on a 200 cell sport cat on my factory header... or putting on a pilo racing crank pulley... so i can get the power of 17% while keeping the vibrational damper

these are on my mod list that i can do without breaking the bank... which do you guys think is likely going to cause a bigger difference? im worried about belt longevity... as i do track the car and autocross consistently..... that's why im holding judgement on the crank pulley... the alta one looks to be better for gains but i fear losing the vibrational damper... and killing the belt

also.. .anyone feel a need for me to do injectors and throttle body? ive thought hard about tb, but from gains perspective i dont see a point wasting 400 bucks for 5 hp 'claimed gains'

anyone?

this is a street/autocross/track/winter car for me... spring and shocks are coming, i also got a splitter and a cf hood coming... these power gains are just icing on the cake!

any advice is welcome