hi hi kylim8
If u want to mod your s15 to 450hp then u only need to change all your eng head set to
HKS step 3,
Greddy T67,25g turbo and
Power Fc ecu.
Hope this list can give u some ideal
anyone experience this before...
my car when im driving the brake is applied with out me actually pressing it..
so its like its super heavy to drive..coz the brake pads is touching the disc...
and the brake pedal...