COMP Cams Thumpr NSR Camshaft
2003–2025 Dodge Ram 1500 / 2500 / 3500, 2004–2025 Dodge Durango, 2005–2010 Chrysler 300, 2005–2008 Dodge Magnum, 2005–2010 Jeep Grand Cherokee, 2006–2025 Dodge Charger, 2006–2008 Jeep Commander, 2008–2010 Dodge Challenger
112-700-11
Overview:
The COMP Cams Thumpr NSR camshaft is engineered specifically for Dodge GEN III and GEN IV HEMI engines, covering a wide range of models from 2003 through 2025. Designed to deliver the signature Thumpr idle lope, this camshaft enhances your vehicle’s sound and performance without sacrificing low-end torque. Ideal for enthusiasts seeking aggressive throttle response and a distinctive race-inspired exhaust note, the Thumpr NSR offers a straightforward upgrade that does not require valve spring changes.
Whether you drive a Dodge Ram, Charger, Durango, or Jeep Grand Cherokee, this camshaft provides a balanced power increase in the mid to upper RPM range while maintaining street-friendly drivability. It’s a perfect solution for those wanting to add character and performance to their HEMI-powered vehicle with minimal modifications.
Key Features:
The COMP Cams Thumpr NSR camshaft combines advanced engineering with practical benefits for modern HEMI engines. Key features include:
- Optimized intake and exhaust lobes for improved mid-to-high RPM power
- Signature Thumpr idle lope that delivers an aggressive, racecar-style sound
- No valve spring upgrade required, simplifying installation
- Compatible with 5.7L, 6.1L, and 6.4L Dodge HEMI engines
- Designed for GEN III and GEN IV HEMI platforms
- Recommended ECU tuning and DOD (Displacement on Demand) deletion for best results
- Phaser limiter recommended for VVT-equipped GEN IV HEMI engines to protect timing components
- Maintains strong low RPM torque for street-driven vehicles
- Delivers excellent throttle response and mid-range horsepower gains
Construction & Design:
Manufactured with precision-ground lobes and high-quality materials, the Thumpr NSR camshaft is built to withstand the rigors of performance driving. COMP Cams utilizes advanced cam profile technology to optimize valve timing for the modern HEMI architecture, ensuring durability and consistent performance. The camshaft’s design balances aggressive sound and power gains with the reliability expected from a factory-style upgrade.
Its construction allows for direct bolt-in installation on compatible engines without the need for additional valvetrain upgrades, making it a practical choice for enthusiasts looking to enhance their vehicle’s character and performance.
Performance & Sound
The Thumpr NSR camshaft is renowned for delivering the unmistakable Thumpr idle—a deep, lopey sound that mimics racecar engines. This aggressive exhaust note is achieved without compromising drivability or low-end torque, a common drawback in traditional performance cams. Drivers will notice improved throttle response and increased power in the mid to upper RPM range, making it ideal for spirited street driving and weekend performance.
While there is a slight power trade-off below 2500 RPM, the overall gains and enhanced auditory experience make this camshaft a favorite among HEMI enthusiasts seeking both sound and performance.
Installation & Fitment:
The COMP Cams Thumpr NSR camshaft is designed for direct installation on a broad range of Dodge and Jeep vehicles equipped with 5.7L, 6.1L, and 6.4L HEMI engines from model years 2003 to 2025. Installation does not require valve spring upgrades, reducing complexity and cost. However, COMP Cams recommends an ECU tune and DOD deletion to optimize engine performance and ensure proper operation.
For GEN IV HEMI engines equipped with variable valve timing (VVT), a phaser limiter is advised to protect the timing system and maintain reliability. Professional installation is recommended to ensure correct timing and setup.
What's Included:
- COMP Cams Thumpr NSR camshaft (Part #112-700-11)
- Installation instructions
Ideal For:
This camshaft is ideal for Dodge and Jeep enthusiasts who want to enhance their vehicle’s performance and sound without extensive modifications. It suits street-driven vehicles where maintaining low-end torque and drivability is important, while also delivering a distinctive race-inspired idle and improved mid-range power. Perfect for owners of Dodge Ram trucks, Chargers, Challengers, Durangos, Magnums, Chrysler 300s, Jeep Grand Cherokees, and Commanders equipped with compatible HEMI engines.
