COMP CAMS Thumpr NSR Hydraulic Roller Camshaft [214-233 | .510-.505 | 113] (2009-2018 CHRYSLER 5.7L & 6.4L HEMI)

The COMP Cams Thumpr NSR Cams for Dodge Gen III/IV Hemi Engines bring the wildly popular Thumpr sound to late model Hemi engines, while offering big power gains and no need to upgrade valve springs

The Thumpr grinds for Gen III and Gen IV Hemi engines need little more than a tune (phaser limiter also required for VVT Gen IV) to produce a race sound and excellent performance in the mid to upper RPM window. They work with stock valve springs, though COMP Cams recommends disabling the DOD system for optimal performance.

• No springs required for a far easier installation
• Billet steel core for increased strength
• Great in naturally aspirated or supercharged applications

HYDRAULIC ROLLER - Thumpr - Delivers the awesome Thumpr sound from your VVT Hemi with a simple cam, limiter & tune. Excellent performance in the mid to upper RPM with only small losses below 2500 RPM. Phaser limiter or lockout kit required.

Requires cam phaser limiter kit (Part #5761) or optional cam phaser lockout kit (#5760).