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Hooker RacingHeart

Hooker Racingheart 3-Step Dragster Headers - Polished 304 Stainless

Big Block Chevy, Downswept, 2.125 in. / 2.25 in. / 2.375 in. Stepped Primaries, 4.5 in. Merge Collector, Polished 304 Stainless Steel

Part # 2502-2HKR
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Hooker's RacingHeart Big Block Chevy Downswept, 3-Step Dragster Headers feature 2.125 inch/2.25 inch/2.375 inch stepped primary tubes to maximize exhaust flow, resulting in horsepower and torque gains over a broad rpm range. The 4.5 inch merge collector with merge spear design improves the transition of the exhaust pulse from the primary tube to the collector and maximizes the scavenging effect on the exhaust pulse. This helps maintain the velocity of the pulses as they travel through the collector. These headers are ideal for big block Chevy engines making over 1000 horsepower. They are available in both Chrome plated Mild Steel and Polished 304 Stainless Steel.


  • 2.125 in./2.25 in./2.375 in. Stepped Primary Tubes Maximize Exhaust Flow, Resulting in Horsepower and Torque Gains Over a Broad RPM Range
  • 4.5 in. Merge Collectors Improve the Transition from the Primary Tubes to the Collector, Helping to Increase Exhaust Pulse Velocity
  • Collectors Feature Merge Spears for Increased Exhaust Velocity and Scavenging
  • 3/8 in. Thick Header Flanges for Strength and Maximum Sealing Surface
  • Available in both Chrome Plated Mild Steel and Polished 304 Stainless Steel
  • Offers a Better Combination of Low End Torque and High End Horsepower Compared to a Non Stepped Header
Bolt Size3/8-16 x 3/4
Brand Hooker RacingHeart
CARB (California) CompliantNo
Collector Diameter4.50 inch
Emission Code4
EngineBig Block Chevy
Header FinishPolished
Header StyleLong Tube
Primary Tube Dia.2.125"/2.25"/2.375"
Product TypeHeaders
Tube Length30 inch
Tube Material304 Stainless Steel
Part Number2502-2HKR

This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

*Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

Some parts are not legal for use in California or other states with similar regulations.