So I am trying to figure out-
13B s4 small street port
Racing Beat Header
Borla Ends
K&N Filter

Approx. how much rwhp?

Im trying to figure out if its worth dmuping the money into!

Now for later-
13B small street port
racing beat header
borla ends
CAI
Lightweight flywheel- aftermarket clutch
t2 injectors and t2 fuelpump
standalone

Approx how much rwhp?

 

i wouldent say 20 more than stock.
assuming n/a, i would say ~180, maybe 190 tops if you match that streetport with fuel and spark?

peace