Kooks Headers 2851H220 1-3/4in. Long Tube Header and Catted Y-Pipe Connection Kit

The Kooks Headers 2851H220 is a complete 1-3/4-inch long tube header and catted connection kit engineered for maximum exhaust flow and power gains on 1999–2006 GM 1500 Series trucks and SUVs equipped with 4.8L or 5.3L engines. This kit bundles everything needed for a full front-of-cat exhaust upgrade in a single package, built to Kooks' exacting race-tested standards.

Kit Includes:

• 1-3/4" x 3" T304 Stainless Steel Long Tube Headers — one-piece long-tube design for maximum scavenging efficiency
• 3" x OEM Outlet Catted Stainless Steel Y-Pipe — high-flow catalytic Y-pipe connects headers to factory-style outlet
• Mounting hardware included

Key Features:

• T304 aircraft-quality stainless steel construction for superior corrosion resistance and long-term durability
• Long-tube one-piece header design reduces exhaust backpressure and prevents exhaust crossflow for improved mid-to-high RPM power output
• Oxygen sensor ports retain O2 sensor compatibility
• 3-inch primary collector outlet diameter for unrestricted flow
• Dyno and race tested for proven performance gains
• Handcrafted in the USA at Kooks' dedicated manufacturing facility
• Backed by a limited lifetime warranty to the original purchaser

Kooks Headers and Exhaust has been a leader in high-performance exhaust since 1962, with championships and records across NHRA, IHRA, NMCA, NMRA, NASCAR, SCCA, and NASA competition. The 2851H220 brings that race-proven engineering directly to your 1999–2006 GM 1500 platform. Note: Competition use only. Not legal for street use in California.