Hooker Header Back Exhaust System

63-72 1/2, 3/4, 1-Ton Truck (2WD), 69-72 Chevy / GMC Blazer / Suburban / Carryall / Yukon / 1-Ton Crew Cab (2WD): 265-400; Fits Long Wheelbase Only

PART# 16522HKR

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$226.95   Suggested Retail
$203.95   Your Price
Estimated shipping date: 02/28/2018
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Will not fit with stock manifolds that exit straight down.


Designed to fit Hooker Competition header, manifold or catalytic converter back applications. Cat-Back kits install behind the converter and all other applicable emission control devices.


  • Reducer Flex-Tubes
  • Reduces Backpressure
  • Improves Engine Efficiency
  • Hardware Included
  • Instructions Included
  • Fits Long Wheelbase Only


Emission Code3
Muffler TypeNone
Product TypeExhaust
Tube Size2-1/4 inch
Type of ExhaustHeader-Back
Part Number16522HKR

Tech Resources

Will not fit with stock manifolds that exit straight down.


This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.

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