hello, fellow scion members, i purchased a HKS Hi-power exhaust ssytem just recently and i installed and i love the way it sounds and it is great, just wondering since it isnt a full cat-back exhaust how much hp gain do i get, if any. If i get a turbo kit to match with it, which is my plan, woiuld it effect it in any positive or negative way? what else should i get before purchaasing a tuirbo kit... thanks!

 

First of all, welcome to Scion Life.

Second, there is a section of the forums you should've posted
your questions at. It's called POWER and DRIVETRAIN.

https://www.scionlife.com/forums/viewforum.php?f=97

Ask there, you'll find that section more useful.

 

i'm gonna overestimate and say you got 3 crank hp, so basically you got 1 whp out of it. an axleback won't do much, even with my full catback i wouldn't expect more than 3 whp. an exhaust is mainly for looks and sound, but it's still good!