An engine’s camshafts must be set at their proper positions relative to the crankshaft in order to maximize horsepower. Black Series Pro Series Cam Gears for Hondas B-series and H23A1 engines enable serious tuners to optimize horsepower and torque by being able to adjust camshaft timing +/- 10 degrees; in one-degree increments; allowing them to tailor the power curve appropriately. Thanks to laser-etched timing and directional marks; precise camshaft adjustments can be made quickly and easily. Pro Series Cam Gears feature precision-machined; hard-anodized teeth to reduce premature wear with a signature; six-bolt design that eliminates gear slipping. Skunk2’s lightweight design (35 percent lighter than OEM) and CNC-machined; 7075-T6 billet aluminum construction reduces rotational inertia; resulting in increased engine response and acceleration. Skunk2’s adjustable cam gears have also been proven on race cars in the most extreme conditions for more than a decade.This Part Fits:YearMakeModelSubmodel1990-1993;1997-2001AcuraIntegraGS1992-2001AcuraIntegraGS-R1990-2001AcuraIntegraLS1990-1998AcuraIntegraRS1995-1996AcuraIntegraSpecial Edition1997-1998;2000-2001AcuraIntegraType R1999-2000HondaCivicSi1994-1997HondaCivic del SolVTEC1995HondaPreludeSE1992-1996HondaPreludeSi1992-1994HondaPreludeSi 4WS