COMP Cams is bringing the musclecar sound back, and it's nastier than ever! Few things grab our attention at a car show or cruise-in like a thumping, high performance idle. COMP Cams engineers introduce the Thumpr camshafts—a new series of hydraulic flat tappet cams. The lobe profile and grind characteristics of Thumprs use a combination of early exhaust valve opening, long exhaust duration, and a generous amount of intake and exhaust overlap—to maximize the rough-idling characteristics of the cams. They give you a seriously aggressive exhaust note without negatively impacting the power output or streetability of the engine. Thumpr camshafts are available in several grind profiles; each one will produce a rough, racy exhaust note and impressive amounts of horsepower and torque within a different rpm range.

More From This Category

COMP Cams Cam Phaser Limiter Plug for '07-'08 GM GEN IV LS and '14+ GM GEN V LT1

COMP Cams Cam Phaser Limiter Plug for '07-'08 GM GEN IV LS and '14+ GM GEN V LT1

$128.47

Crow Cams Camshaft, Holden V8 253-308 Hydraulic, Adv. Duration 282/295, Valve Lift 0.501/0.501

Crow Cams Camshaft, Holden V8 253-308 Hydraulic, Adv. Duration 282/295, Valve Lift 0.501/0.501

$643.50

COMP Cams Camshaft, Swinging Follower, Advertised Duration 264/285, Lift .434/.411, For Mitsubishi 4G63 EVO VIII 2.0L, Each

COMP Cams Camshaft, Swinging Follower, Advertised Duration 264/285, Lift .434/.411, For Mitsubishi 4G63 EVO VIII 2.0L, Each

$1,416.83

COMP Cams Cam/Lifters/Timing, Nitrous HP, Hydraulic Flat, Advertised Duration 284/305, Lift .507/.525, For Chevrolet Small Block, Kit

COMP Cams Cam/Lifters/Timing, Nitrous HP, Hydraulic Flat, Advertised Duration 284/305, Lift .507/.525, For Chevrolet Small Block, Kit

$871.37

Crow Cams Camshaft Ford Falcon FG Quad 315kw, Set

Crow Cams Camshaft Ford Falcon FG Quad 315kw, Set

$2,002.85