01-10 Chevrolet/GMC LB7 LLY LBZ LMM Duramax Mega Filter Retrofit Kit Silk Satin Black HSP Diesel GM Avalanche/Escalade/Sierra/Sierra Limited/Silverado/Silverado LD UPC Code 658848612840

UPC Code 658848612840

Improves flow of oxygen-rich air into cylinders

7L When used with 4R100 transmission

UPC Code 711745609013

Complete Undercarriage Defense: Armor up your GM 1500 with Rough Country's Skid Plate System and gain the protection your truck needs to tackle tough terrain with confidence

01-10 Chevrolet/GMC LB7 LLY LBZ LMM Duramax Mega Filter Retrofit Kit Silk Satin Black HSP Diesel GM Avalanche/Escalade/Sierra/Sierra Limited/Silverado/Silverado LD UPC Code 658848612840Upgrade your existing HSP 4. 5 inch intake with the HSP Mega Filter Retrofit Kit. This kit converts earlier PRIOR TO 3 12 2026 HSP intake systems to the latest square Mega Filter and aluminum heatshield box design, delivering improved airflow, increased filtration area, and easier serviceability. Why You Need the HSP Mega Filter Retrofit Kit The new square HSP Mega Filter flows approximately 10 percent more air than the previous round filter design