Features: 1.Engineered to completely remove the O.E. EGR system and bypasses the cooler. 2.Provides LOWER running temperatures, BETTER throttle response, IMPROVED fuel economy, and INCREASED reliability. 3.Prevents warping caused by the intense heat generated by diesel engines. 4.Guaranteed to last under high temperatures and pressure. 5.Ensures a clean, neat look to your engine bay. Precision CNC machined for a perfect fit, and constructed from aircraft-grade 7075 aluminum. Specification: Condition: 100% Brand New Item Type: EGR Delete Kit & High Flow Intake Material: Alloy + High Quality Rubbe Color: As Pictures Shown Fitment: Fit for Duramax Diesel "LLY" 6.6L 400CID OHV V8 Fit for Chevy Silverado (May) 2004-2005 Fit for GMC Sierra (May) 2004-2005 Fit for Chevrolet Silverado 2500 HD 6.6L OHV V8 DIESEL TURBO VIN "1","2" 2004-2005 Fit for Chevrolet Silverado 3500 6.6L OHV V8 DIESEL TURBO VIN "1","2" 2004-2005 Fit for GMC Sierra HD 6.6L OHV V8 DIESEL TURBO VIN"1","2" 2004-2005 Fit for GMC Sierra 3500 6.6L OHV V8 DIESEL TURBO VIN "1","2" 2004-2005 Note: 1.Off-road use only, not for road vehicles. NOT LEGAL for use in pollution controlled vehicles that are operated on public streets, roads or highways. 2.Requires use of a tuner to compensate for EGR delete.