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 Stage 2 LST (24X) Master Camshaft Kit for LS 4.8/5.3L Turbo Engines

COMP Cams Stage 2 LST (24X) Master Camshaft Kit for LS 4.8/5.3L Turbo Engines

$3,747.79

Crow Cams Camshaft, Ford Pre-Crossflow Hydraulic, Adv. Duration 270/270, Valve Lift 0.42/0.42

Crow Cams Camshaft, Ford Pre-Crossflow Hydraulic, Adv. Duration 270/270, Valve Lift 0.42/0.42

$436.74

COMP Cams Cam / Lifters / Valvetrain Xtreme Energy Solid Flat Advertised Duration 282 / 290 Lift

COMP Cams Cam / Lifters / Valvetrain Xtreme Energy Solid Flat Advertised Duration 282 / 290 Lift

$1,319.01

Crow Cams Camshaft, Ford 4cyl Kent Solid, Adv. Duration 255/265, Valve Lift 0.35/0.34

Crow Cams Camshaft, Ford 4cyl Kent Solid, Adv. Duration 255/265, Valve Lift 0.35/0.34

$454.07

Crow Cams LS CAM & VTKLS8 SPRING KIT

Crow Cams LS CAM & VTKLS8 SPRING KIT

$1,185.51

COMP Cams Cam / Lifters / Valvetrain Xtreme Energy Solid Flat Advertised Duration 282 / 290 Lif

COMP Cams Cam / Lifters / Valvetrain Xtreme Energy Solid Flat Advertised Duration 282 / 290 Lif

$1,398.47