maybe this can help you
PURSUITS -- All Levels:
LVL 1 Heat Street series Sport forced induction T2
LVL 2 Heat Race series Improved Suspension T2
LVL 3 Heat Street series Sport Suspension T1
LVL 4 Heat Street series Sport Engine T2
LVL ? Heat Street series Sport Engine T3
LVL 5 Heat Street series Tuned Engine T2
LVL 5 Heat Street series Tuned Forced Induction T2
LVL 5 Heat Sport suspension T3
LVL 5 Heat Street series Improved Transmission T3
LVL 5 Heat Street series Tuned Transmission T2
LVL 5 Heat Street series Sport Brakes
LVL 5 Heat Street series Tuned Tire T3
LVL 5 Heat Race series Sport Suspension T3
LVL ? Heat Street series Sport Engine T3
LVL ? Heat Street series Tuned Forced Induction T3
LVL ? Heat Race series Sport Suspension T3
LVL ? Heat Race series Improved Suspension T3
LVL ? Heat Race series Improved Engine T3
LVL ? Heat Race series Sport Suspension T2
LVL ? Heat Street series Improved Engine T3
LVL ? Heat Street series Sport Suspension T3
LVL ? Hear Pro series Improved Engine T2