My 06 GTP:
SSAC Headers
Open cone
3.6 Pulley
180 t stat
Plugs
Winter Tires
No Tune

Buddies WRX: (Non STI)
Intake
Stage 1 tune

The road we went on was kind of sandy so the traction sucked, but the first race i took him off the line somehow and we were completely neck and neck the whole way to 160 kmh

The second race he jumped on me off the line and i kept with him about a 1/4 car length behind the whole way until 160 kmh

Third Race i had a terrible start and he jumped on me big, couldn't catch up lol.

But in the end considering winter tires and no tune i think i did not bad. And once i get my In car Overkill tune/the new tires on it, it will be a different story