Engine Modifications
Hey everyone,
I have a 2009 Subaru Impreza S-GT (GH8)
-EJ20X (STOCK)
-4EAT (Tiptronic)
-Protune (Dyno at 200whp)
-Full stock STI Exhaust
Everything mentioned above is exactly how I purchased the car from previous owner.
I’m interested in increasing power to maybe higher 200’s or even 300whp...