An exceptional choice for muscle cars and street rods, the COMP Cams Thumpr Camshaft And Lifter Kit is the answer to the lifelong question of "What camshaft will give my vehicle a heart thumping high performance sounding idle?". With a design originally crafted for sports car endurance racing, this inimitable camshaft optimizes rough idling through a lobe profile and grind characteristics that utilize a combination of an early exhaust valve opening, a long exhaust duration, and an appropriate supply of intake and exhaust overlap.

The Thumpr's progressive design makes certain that the outstandingly powerful exhaust note does not compromise the power output or street efficiency of your engine. For different needs, COMP Cams made their Thumpr camshafts available in a selection of grind profiles. These various profiles generate a powerful and race appropriate exhaust note that's coupled by elevated levels of horsepower and torque within different rpm ranges. The COMP Cams Thumpr Camshaft and Lifter Kit comes with everything you need to generate the big cam sound you've been looking for. The whole package includes a Thumpr Camshaft, lifters, assembly lube, decals and a detailed instruction manual.

Since its establishment in 1976, Competitions Cams Inc., more famously known as COMP Cams has been an industry leader in the production of top quality valve train components. Prioritizing both the custom builder and the race enthusiast, COMP Cams' engineers incorporate only proven technology, efficient procedures and the most cutting edge equipment to produce their camshafts, rocker arms, valve lifters and other essential engine components. This is the same design process being utilized to develop reliable components for championship winning teams in international competitions like NASCAR and NHRA.

For more than three decades, COMP Cams has established a huge collection of standard setting camshafts and valve train solutions that emphasize outstanding performance on the track and the street. Adding to that, the company also offers free expert technical assistance to its customers to ensure they make the proper purchase for their specific application. With a passion to continuously improve, it's no wonder COMP Cams has been a household name for teams competing in the most prestigious circle track, drag racing, road race and off-road racing. Currently based in Memphis, Tennessee, COMP Cams continues to be a reliable brand by providing innovative and modern performance parts that never settle for second place.