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
Well.. I tried for my 3rd brake light. it didnt last long. abt 2 weeks. At first very bright. nice. sigh... spent RM 60 for the LEDs :( anyone knows where to get top grade LEDs?