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Valve timing
Allows for removal of the OEM MAF sensor for improved air flow (requires SP Engineering MAF Block Off Plates sold separately)
2lbs (6kg) | Stock Weight: 58
Cut out sections of the lower undertray design also retain the functionality of the factory brake system's cooling ducts
undertrays
JRZ RS Sport Coilovers - Subaru Impreza WRX GD / GG / GGS (2001 - 2004) 5x100 bolt pattern wheel Upgrades:JRZ RS Pro (JRZ topmount) Valve timingThe RS Line Knowledge gained from racing is integrated in the JRZ RS PRO system. The use of the large shaft creates an optimum fluid displacement through the preset compression blow off valve to control the unsprung mass. A special designed piston is used to filter out the large, high velocity movements seen with suspensions on street applications. The car can be set up comfortably for street use and be set up for superb handling on track.