2006-2010 GM 6.6L Duramax Fuel Block solid BIOTHANE COLLAR Improves airflow by over 26

Improves airflow by over 26 percent and 45 percent

Because we know you demand nothing but the best

and general lack of protection on the small charging circuit sense wires that are routed from Powertrain Control Module (PCM) to the alternator it is common for wire damage to be experienced

Includes high quality reinforced 5-Ply silicone couplings and stainless steel spring loaded T-bolt clamps for secure installation

2006-2010 GM 6.6L Duramax Fuel Block solid BIOTHANE COLLAR Improves airflow by over 26Constructed with high strength alloy steel to withstand extreme high fuel pressures, and chrome plated for corrosion resistance. Helps maintain fuel rail pressure in ALL conditions.