Kooks Headers 9905S 1-7/8in x 3in 304 Stainless Steel Slip-On Collector

The Kooks Headers 9905S is a premium slip-on collector designed for custom header builds and exhaust system modifications. Constructed from high-quality 304 stainless steel, this universal collector features a 4-into-1 design that optimizes exhaust flow and scavenging efficiency for maximum performance gains.

Key Features:

• 4-into-1 collector design for improved exhaust scavenging
• 1-7/8 inch inner diameter inlet to slip over 1-7/8 inch primary tubes
• 3 inch outer diameter outlet for seamless exhaust system integration
• Kooks patented scavenging spike technology for enhanced flow
• 7-8 inch long body with 2 inch slip-on stub section
• Includes A/B style tabs for secure attachment to primary tubes
• Aircraft-grade 304 stainless steel construction for superior corrosion resistance
• Handcrafted in the USA with precision welding

This collector is sold individually and is commonly used in custom header fabrication kits, particularly for performance and racing applications. The slip-on design allows for easy installation and adjustment during custom builds. Each collector includes mounting tabs to ensure a solid connection to the primary tubes without requiring full welding during initial fitment.

Applications: Universal fit for custom header builds using 1-7/8 inch primary tubing with 3 inch collector outlets. Ideal for street performance, racing, and off-road applications where maximum exhaust flow is critical.