Description Reviews Cat Cams MINI Cooper S Performance Cam Shafts "Hot Street 2" #1302603 Specs: Duration: IN 257°/ EXH 250° - IN 216°/ EXH 209° Lift IN 10.00mm/ EXH 9.50mm Lift TDC IN 0.00mm/ EXH 0.50mm Includes NEW OEM Rectangring 11-31-7-587-757 ECU reprogramming required Distance between valve and piston should be 1.0mm at least: Check 5-15° after TDC on intake Check 5-15° before TDC on exhaust Machine pistons if required. Wrong installation can cause severe engine damage! Will not work correctly with Stock or Supertech pistons. Will only fit MINI Cooper S with the N14 and N14 JCW motors. We recommend using the CP pistons.