Hooker Competition Headers - 1.625 in Primary - 3 in Collector - Metallic Ceramic - Small Block Chevy - GM A-Body / B-Body / F-Body / X-Body 1964-94 - Pair 11003B 2007-2013 GMC Sierra 1500 SLE Size:Small (55-56) 8174 40 Delta Force SIMHYPLSML11SASPA

2007-2013 GMC Sierra 1500 SLE Crew Cab Pickup

* CARB RECOMMENDATIONS: Edelbrock Thunder Series AVS or Performer Series (650-800 cfm) Carburetor

They are made with wire leads that deliver a low 50 ohms of resistance per-foot for maximum EMI/RFI noise suppression

375 in Radius

GMC: Sierra 2500 HD Classic 07 - 07 6 L Engine

Hooker Competition Headers 1.625 in Primary 3 in Collector Metallic Ceramic Small Block Chevy GM A Body B Body F Body X Body 1964 94 Pair 11003B 2007 2013 GMC Sierra 1500 SLE Size:Small (55 56) 8174 40 Delta Force SIMHYPLSML11SASPA 2007 2013 GMC Sierra 1500 SLE Crew Cab Pickup * CARB RECOMMENDATIONS: Edelbrock Thunder Series AVS or Performer Series (650 800 cfm) Carburetor