PPG Subaru STI EJ257 07+ 6Spd Sequential Heavy Duty Ratios 3.333 2.384 1.750 1.333 1.040 0.857

PPG has developed a high-performance, 6-speed sequential, dog-engagement gear system for Subaru WRX STI models that are fitted with an OEM 6-speed gearbox. Working with Rocket Rally Racing (Subaru Canada) the gearbox has been designed to cope with the demands of top-level motorsport and can be used for race, rally, sprint, hill climb and Time Attack applications, meeting regulations for Open Class, USA & Canada Rally Championships, World Time Attack and a range of domestic series’ in various countries.

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Sequential gear set specification

• 6-speed sequential, motorsport configuration: R-N-1-2-3-4-5-6

• Shot-peened steel billet gear-shift forks and gears

• Billet gear shift lever assembly, including mount

• Billet aluminium mid-plate

• Precision engineered straight-cut tooth profile

• Gear set drops directly into manufacturer’s gearbox casing

• PPG proprietary 6-dog ring design, for fast and precise shifting

• Motorsport grade steel used for all gears, heat treated for strength, durability

and longevity

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Sequential gear shift specification

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• Gill Sensors Blade 360˚non-contact rotary gear position sensor

• World-leading sub-70ms gearshift

• Geartronics LED display

• Gear shift via rod operation, with integrated reverse detent lock out

• Low-mass billet T606 aluminium H-section gear stick, with integrated reverse lever

• Low-friction dual ball-bearing shifter pivot

• Unique reversible design compatible with LHD and RHD installations

• Optional motorsport load cell for flat up-shift and throttle blip down-shift