Product Features BulletProof EGR Cooler, GM, 6.6L, Duramax, LLY Manufactured by: Bullet Proof Diesel Stainless Steel Tubing That Is Stronger And...

Wagler Competition Products proudly presents their updated 6.6 Duramax connecting rods. These competitively priced connecting rods feature the ben...

The ARP Custom Age 625 series head studs are the ultimate head stud for high horsepower and competition engines.  Rolled threads after hardening, c...

ARP DIESEL MAIN STUD KIT 230-5401 2001-2005 GM 6.6L DURAMAX LB7/LLY

The affordable Wagler Duramax As-forged Street connecting rods are the perfect solution for a hot street truck making 1,000 HP or less. The as-forg...

KDD is proud to present our exclusive line of Jesel rocker arms for the 6.6L GM Duramax.  We had the honor of working with the world renowned valve...