Ok here it is..
Car-$24980
Sport Exhaust-$1550
ECU Chip-$1250
R4 tires-$34,750
Nitrous-$5000
Stage 1 turbo-$4600
Sports IC-$1600
Sports suspension-$3100
Racing Flywheel-$1000
Stage1 wieght reduction-$1100
Oil Change-$50
Total was $78,980
Start off in 2nd gear with traction control on level 7 i do belive... Spray a 100 shot off the line and shift in the middle of the redline. Should be good for 12.60s 12.70s every pass! I managed to get a 12.658 3 times. It would never go faster.... Well there it is!!
I forgot to add this... Go to ballast and put it to -50 and add 130lbs to it.