Long Tube Headers for Dodge Challenger (2009-2012) 6.1L SRT-8

Optimize Exhaust Velocity for the 6.1L Gen III HEMI ESF Powerplant

Who It’s For: Engineered for owners of the high-displacement 6.1L HEMI who are ready to move past the restrictive limitations of heavy factory cast manifolds on their SRT-8 platform.

The Symptom: The factory exhaust manifolds on the 2005-2012 Chrysler and Dodge SRT-8 models are a major bottleneck. Designed for mass production and heat retention rather than flow, these log-style manifolds force exhaust gases from multiple cylinders to collide, creating high backpressure. This trapped heat and turbulence prevents the 6.1L engine from breathing efficiently, leading to a sluggish mid-range and a choked-off top end when you’re trying to move these high-mass muscle cars down the strip or onto the highway.

The Engineering Fix: This 4-into-1 long tube system utilizes the physics of exhaust scavenging to actively pull spent gases out of the combustion chamber. By using individual 1.5" mandrel-bent T-304 stainless steel primaries, each exhaust pulse is isolated until it reaches the 3.0" collector. This creates a low-pressure zone that sucks the next pulse through the system, reducing pumping losses and allowing the engine to put more power directly to the rear wheels. The result is a significant increase in volumetric efficiency and a much sharper throttle response.

Why Mechanics Choose This Kit

• Scavenging Optimization: The 4-1 long tube geometry is specifically designed to improve the scavenging effect, which is critical for the naturally aspirated 6.1L Gen III HEMI to reach its full torque potential.
• Aggressive Induction & Exhaust Note: By replacing the thick-walled factory logs with tuned stainless piping, you gain a crisp, metallic HEMI roar that stock manifolds simply cannot produce.
• Built for Thermal Stress: Manufactured with CNC machined T-304 stainless steel and computerized TIG-welded flanges, these headers are built to withstand the extreme heat cycles of spirited driving without warping or cracking.

Technical Specifications

Compatibility & OEM Reference

Fits the Following Vehicles:

• 2012 Chrysler 300 SRT-8
• 2005-2010 Chrysler 300C SRT-8
• 2009-2012 Dodge Challenger SRT-8
• 2006-2010 Dodge Charger SRT-8
• 2006-2008 Dodge Magnum SRT-8

Interchange & Component Specs:

4-1 Manifold Design, T-304 Stainless Steel, TIG Welded Flanges, 1.5 Inch Primaries, 3.0 Inch Collectors, Direct Bolt-On SRT8 Fitment.

The Performance Promise

Buy with confidence. We understand the fluid dynamics of the HEMI platform. This kit is backed by performance-driven engineering to ensure your SRT-8 performs as aggressively as it looks. Professional installation is highly recommended to ensure perfect exhaust port alignment.