PERRIN Gurney Flap - 2015-2021 WRX/STi Mr. Gasket working window for consistent bottle

working window for consistent bottle pressure

Greater area under the 'lift curve' = greater air intake

• Mounts to Existing Bolt Holes

Fitment: HRB: Disc: Part Number: Evo X: with HRB Street 750 ft/lbs 2897P2635 Evo X: with HRB Race 900 ft/lbs 2897R1635

0mm VR38DETT Set for 6 Pistons 46995-4 99

PERRIN Gurney Flap - 2015-2021 WRX/STi Mr. Gasket working window for consistent bottleVehicle Fitment: 2015 2021 WRX & STi INCREASE DOWNFORCE AND PERFORMANCE After sending the PERRIN Gurney Flap in for professional flow analysis, it was determined that it decreases overall lift of the car while only slightly increasing drag. This means the aerodynamic efficiency of the system is increased. Analysis has shown the PERRIN Gurney Flap increases downforce by 35 lbs. at 75 mph, 62 lbs. at 100 mph, and nearly 100 lbs. at 125 mph. AGGRESSIVE