TODA Racing campulleys allow precise tuning of camshaft timing. Adjustable campulleys are essential when using TODA camshafts or any non-stock performance camshaft. TODA campulleys are made completely from 7075 aluminum, a higher grade of aluminum than what our competition use. The use of 7075 aluminum allows TODA Racing to offer the strongest and lightest campulley on the market. In addition, our advanced timing degree system makes TODA campulleys the most accurate on the market. For long term durability the timing marks are machined into the metal. 1 set includes intake and exhaust campulley.