Holley

Hooker LS Exhaust Manifolds 2.5" Outlet

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  • $343.95
  • Regular price $509.95
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GM LS Exhaust Manifolds w/ 2.5" Outlet

Hooker cast iron exhaust manifolds have been designed to hug close to the engine block so they fit into a wide variety of replacement and engine-swap applications. Their contoured design aims the exhaust directly at the exit port for improved flow. Being cast iron means they will provide years of leak-free performance with less under hood noise than traditional headers. Plus, their shorty design means you can route exhaust tubing close to your frame/floor pan for maximum ground clearance. "Hook" up your GM LS engine with Hooker cast iron manifolds today!

Features:

  • Intended for all GM LS (except LS7 and LS9) engine swap applications where durability, quiet operation, emissions compliance and leak-free sealing is desired
  • Available in plain as-cast finish or with various Hooker ceramic coatings for reduced engine compartment temps and improved corrosion resistance
  • 304 stainless steel mating flanges included (mating flange fasteners are not included)
  • 2.25-inch outlet diameter
  • 2 bolt exit flange configuration matches 2010 Camaro (also the same as the E-rod exhaust manifolds) which can be used with OE gaskets and fasteners if desired, for an OE quality seal
  • Cast from Hi-Silicon-Moly Ductile Iron to provide durability and corrosion resistance
  • Free-flowing for good performance and catalytic converter efficiency
  • Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance - ideal for GM E-Rod installations
  • Recommended for strong performance on engines making up to 500 horsepower (For optimum high rpm performance see Hooker long tube engine swap headers)
  • Perfect complement to Hooker engine swap mount plates and Holley engine swap oil pans
Brand Hooker
Collector Diameter 2-1/2 inch
Emission Code 4
Header Finish Natural, Cast Iron Ceramic, Titanium Ceramic, Silver Ceramic, Black Ceramic
Header Style Manifold
Primary Tube Dia. 1-5/8 inch
Product Type Exhaust Manifolds
Tube Material Cast Iron
Part Number 8502HKR 8502-5HKR 8502-4HKR 8502-1HKR 8502-3HKR