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. In fact, one of the most frequent questions from customers is, "What camshaft will give my car that mean-sounding idle?" For the performance and sound you demand, 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 Camshaft, Xtreme 4x4, Hydraulic Roller, Advertised Duration 280/284, Lift .474/.474, For Chevrolet Small Block, Each

COMP Cams Camshaft, Xtreme 4x4, Hydraulic Roller, Advertised Duration 280/284, Lift .474/.474, For Chevrolet Small Block, Each

$897.10

View
CROWCAMS Camshaft, 307/307 Adv. Duration, .388/.388 in. Lift, For Toyota 4Age 20V Inlet, Each

CROWCAMS Camshaft, 307/307 Adv. Duration, .388/.388 in. Lift, For Toyota 4Age 20V Inlet, Each

$394.12

View
COMP Cams Camshaft, Dual Energy, Hydraulic Flat, Advertised Duration 275/277, Lift .462/.480, For Pontiac 265-455, Each

COMP Cams Camshaft, Dual Energy, Hydraulic Flat, Advertised Duration 275/277, Lift .462/.480, For Pontiac 265-455, Each

$393.33

View
COMP Cams Camshaft, Oval Track, Solid Roller, Advertised Duration 288/300, Lift .704/.672, For Ford 351W, Each

COMP Cams Camshaft, Oval Track, Solid Roller, Advertised Duration 288/300, Lift .704/.672, For Ford 351W, Each

$891.69

View
COMP Cams Camshaft, Magnum, Hydraulic Roller, Advertised Duration 314/314, Lift .600/.600, For Chevrolet Small Block, Each

COMP Cams Camshaft, Magnum, Hydraulic Roller, Advertised Duration 314/314, Lift .600/.600, For Chevrolet Small Block, Each

$897.10

View
COMP Cams Cam / Lifters / Valvetrain High Energy / Marine Hydraulic Flat Cam Advertised Duration

COMP Cams Cam / Lifters / Valvetrain High Energy / Marine Hydraulic Flat Cam Advertised Duration

$799.25

View