Rev up your engine and feel the difference with the COMP Cams Thumpr camshaft series—precision-engineered for the 2003-2008 Dodge 5.7/6.1L HEMI and the 2009+ Dodge 5.7/6.4L HEMI engines. Whether you're aiming for an aggressive performance boost or that unforgettable racecar idle sound, these camshafts deliver without the typical sacrifices. Unlike conventional camshaft swaps that compromise low-RPM torque, the Thumpr camshafts optimized lobes ensure that your HEMI maintains its strength at lower RPMs, all while delivering a thrilling idle lope.

Installation is straightforward as these Thumpr NSR camshafts do not require valve spring upgrades, simplifying the setup process for your Dodge GEN III/IV HEMI. However, to fully unleash their potential, COMP Cams recommends implementing an ECU tune and DOD deletion. Plus, if you have a VVT-equipped GEN IV HEMI engine, consider adding a phaser limiter for optimal performance.

Features

• Iconic Thumpr camshaft sound for an exhilarating driving experience.
• Preserves low RPM torque crucial for street-driven HEMIs.
• No valve spring upgrade required for hassle-free installation.
• Optimized for enhanced mid-to-upper RPM performance.
• Recommended ECU tune and VVT phaser limiter for GEN IV HEMI engines.

The Thumpr NSR series is your ticket to a power-packed, head-turning drive. Witness firsthand the balance of aggressive sound and practical performance that COMP Cams has crafted for modern muscle cars. Feel your pulse sync with the rhythm of your engine's powerful beat, backed by the technological advancements that keep your ride smooth and robust.

If you have any questions or need assistance with your purchase, our knowledgeable team is ready to help you every step of the way. Please don’t hesitate to reach out to us at 512-982-9393 (Texas) or 562-981-6800 (California). We are delighted to ensure you have the best experience with our products and your vehicle.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov