GRAF GEARBOXES SYNCHRO HELICAL GEARSET (1-6) Choose Your Ratio:2.58 / 1.67 / 1.28 / 1.00 / 0.86 / 0.74 (turbo ratios) improving the engine's ability to

improving the engine's ability to breathe efficiently

all while delivering the distinctive BORLA Sound of Power that enthusiasts rave about

The wing element angle is adjustable via the side plates

went into making these tunes the most reliable

0 kg/mm (336 lbs/in) main spring could act as a 6

GRAF GEARBOXES SYNCHRO HELICAL GEARSET (1-6) Choose Your Ratio:2.58 / 1.67 / 1.28 / 1.00 / 0.86 / 0.74 (turbo ratios) improving the engine's ability toFITS: 8th and 9th Gen Honda Civic Si 2002 2006 Acura RSX 1st and 2nd Gen Acura TSX THIS IS A MADE TO ORDER ITEM Model: Civic Transmission: FWD Engine: K20 K24 Gearbox: K series Category: Drag (street strip) Fitment: OEM AVAILABLE RATIOS 2. 58 1. 88 1. 41 1. 11 0. 91 0. 74 (SKU: G08K0501) (all motor ratios) 2. 58 1. 67 1. 28 1. 00 0. 86 0. 74 (SKU: G08K0502) (turbo ratios) Please feel free to contact us about custom ratios.