Well saturday I'm getting an apexi installed and I wanted to know what kind of gains I could expect. I did search with not much about it. I'm just going to do the street tune but eventually I will get in dyno tuned but till then what kind of hp gains can I expect with these mods:
Brullen
Sho-shop ypipe
Opti-T.B
maf adap/k&n filter
w/heatshield
And would get a pro-flow maf help if you got that and then tuned with the apexi? Thanks guys
