aFe 48-36307 Twisted Steel Long Tube Header with Catalytic Converters

The aFe Power 48-36307 Twisted Steel Long Tube Header is a race-only performance exhaust header engineered to maximize horsepower and torque output while significantly outflowing the factory exhaust manifold. Constructed of near equal-length 1-1/2" 16-gauge 304 stainless steel tubing with CNC mandrel-bent curves, this header is built for durability, corrosion resistance, and sustained high-performance use.

Key Features:

• 304 Stainless Steel Construction: CNC mandrel-bent, brushed 304 stainless steel tubing delivers maximum performance, corrosion resistance, and crack-free durability
• True Merge Collectors: Mitered merge collectors eliminate dead space, reduce turbulence, extend effective tube length, and provide optimal exhaust scavenging for improved throttle response
• Pulse Control Technology: Optimized tube lengths and true merge collector design work together to maximize exhaust velocity and flow across the entire RPM range
• Dual High-Flow Catalytic Converters: Integrated dual 300 CPSI metallic catalytic converters deliver maximum flow and a noticeable low-end torque improvement
• 100% Hand TIG-Welded: Certified craftsmen TIG-weld every joint for race-proven strength, minimizing stress cracks and ensuring long-term durability
• Leak-Free Thick Flanges: Thick head flanges prevent warpage and guarantee a secure, leak-free seal at the cylinder head
• Retains Factory Sensors: Designed to retain all factory O2 sensors and includes 6 O-ring header flange gaskets for a hassle-free, no-modification installation
• Dyno-Proven Gains: Delivers up to +16 hp and +18 lb-ft of torque over the stock exhaust manifold
• Engineered & Built in the USA: Designed and manufactured at aFe Power's Corona, California facility

This header includes all hardware needed for a straightforward bolt-on installation. Note: This product is intended for racing applications only. It is EPA compliant but is not for sale or use on vehicles certified for the state of California. See California Prop 65 warning for additional information.