Well, so far I got Buschur intake, Hallman MBC & S-AFC2. I was thinking of either getting a 3" turboback from Buschur but what kind of gains would I be seeing from just the turboback? Or is there another mod that would yield some better gains for around the same money or less?

 

A turbo-back exhaust will give you more horsepower than any other bolt-on on our cars, for the price (with a couple of exceptions)... almost any 3" TBE will work.

BTW, a search will yield many suggestions as well.

 

get a turbo back. You could get about 20-30hp depending if you go catless or not.

 

get the exhaust

 

TBE is a must

 

Turboback is a good option, and if/when you order Buschur make sure you tell them you got the AFC from them, and to get new settings that will apply with the addition of the TBE. I didnt see mention, but you should have a boost gauge too. (You might have one since you state 19PSI... just didnt see one listed.)