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Hooker Manifold Back Exhaust System 16621HKR

Hooker Manifold Back Exhaust System 16621HKR
Hooker Manifold Back Exhaust System 16621HKR
$625.99 ea
NEWARRIVING SOONEstimated Ship Date 07/30/2025 (If Ordered Today)35 Available from HOLLEY PERFORMANCE PRODUCTS as of 07/11/2025
Model: 4008648
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
OVERSIZE 2
STORE PICKUP
[More Info]
Hooker Manifold Back exhaust system is constructed of 2-1/4" 16-gauge aluminized steel tubing for maximum flow and increased performance. This system uses the original equipment tailpipe exit location. Works with any 2-1/4" offset inlet/center outlet muffler
Features:
  • Reducer Flex-Tubes
  • Reduces Backpressure
  • Improves Engine Efficiency
  • Hardware Included
  • Instructions Included
  • Mandrel bent 2-1/4" 16-guage aluminized steel tubing

Downloads:

Download Name File Size
16522-621hkrrev1.pdf292.74KB

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Years Engine Fitment Notes
Chevrolet Blazer 1969 5.0L / 307 / V8
5.7L / 350 / V8
Dual Competition Manifold Back Exhaust System Kit;
Chevrolet Blazer 1970 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet Blazer 1971 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet Blazer 1972 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C10 Pickup 1963 4.6L / 283 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C10 Pickup 1964 4.6L / 283 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C10 Pickup 1965 4.6L / 283 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C10 Pickup 1966 4.6L / 283 / V8
5.3L / 327 / V8
Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C10 Pickup 1967 4.6L / 283 / V8
5.3L / 327 / V8
Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C10 Pickup 1968 5.4L / 327 / V8
5.0L / 307 / V8
Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C10 Pickup 1969 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C10 Pickup 1970 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C10 Pickup 1971 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C10 Pickup 1972 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C10 Suburban 1969 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C10 Suburban 1970 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C10 Suburban 1971 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C10 Suburban 1972 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C20 Pickup 1963 4.6L / 283 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C20 Pickup 1964 4.6L / 283 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C20 Pickup 1965 4.6L / 283 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C20 Pickup 1966 5.3L / 327 / V8
4.6L / 283 / V8
Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C20 Pickup 1967 5.3L / 327 / V8
4.6L / 283 / V8
Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C20 Pickup 1968 5.4L / 327 / V8
5.0L / 307 / V8
Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C20 Pickup 1969 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C20 Pickup 1970 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C20 Pickup 1971 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C20 Pickup 1972 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C20 Suburban 1969 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C20 Suburban 1970 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C20 Suburban 1971 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C20 Suburban 1972 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C30 Pickup 1963 4.6L / 283 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C30 Pickup 1964 4.6L / 283 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C30 Pickup 1965 4.6L / 283 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C30 Pickup 1966 4.6L / 283 / V8
5.3L / 327 / V8
Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C30 Pickup 1967 4.6L / 283 / V8
5.3L / 327 / V8
Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C30 Pickup 1968 5.4L / 327 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C30 Pickup 1969 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C30 Pickup 1970 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C30 Pickup 1971 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
Chevrolet C30 Pickup 1972 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
GMC C15/C1500 Pickup 1967 4.6L / 283 / V8
5.3L / 327 / V8
Dual Competition Manifold Back Exhaust System Kit;
GMC C15/C1500 Pickup 1968 5.4L / 327 / V8
5.0L / 307 / V8
Dual Competition Manifold Back Exhaust System Kit;
GMC C15/C1500 Pickup 1969 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
GMC C15/C1500 Pickup 1970 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
GMC C15/C1500 Pickup 1971 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
GMC C15/C1500 Pickup 1972 5.7L / 350 / V8
5.0L / 307 / V8
Dual Competition Manifold Back Exhaust System Kit;
GMC C15/C1500 Suburban 1969 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
GMC C15/C1500 Suburban 1970 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
GMC C15/C1500 Suburban 1971 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
GMC C15/C1500 Suburban 1972 5.7L / 350 / V8
5.0L / 307 / V8
Dual Competition Manifold Back Exhaust System Kit;
GMC C25/C2500 Pickup 1967 5.3L / 327 / V8
4.6L / 283 / V8
Dual Competition Manifold Back Exhaust System Kit;
GMC C25/C2500 Pickup 1968 5.0L / 307 / V8
5.4L / 327 / V8
Dual Competition Manifold Back Exhaust System Kit;
GMC C25/C2500 Pickup 1969 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
GMC C25/C2500 Pickup 1970 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
GMC C25/C2500 Pickup 1971 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
GMC C25/C2500 Pickup 1972 5.0L / 307 / V8
5.7L / 350 / V8
Dual Competition Manifold Back Exhaust System Kit;
GMC C25/C2500 Suburban 1969 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
GMC C25/C2500 Suburban 1970 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
GMC C25/C2500 Suburban 1971 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
GMC C25/C2500 Suburban 1972 5.0L / 307 / V8
5.7L / 350 / V8
Dual Competition Manifold Back Exhaust System Kit;
GMC C35/C3500 Pickup 1967 4.6L / 283 / V8
5.3L / 327 / V8
Dual Competition Manifold Back Exhaust System Kit;
GMC C35/C3500 Pickup 1968 5.4L / 327 / V8
5.0L / 307 / V8
Dual Competition Manifold Back Exhaust System Kit;
GMC C35/C3500 Pickup 1969 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
GMC C35/C3500 Pickup 1970 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
GMC C35/C3500 Pickup 1971 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
GMC C35/C3500 Pickup 1972 5.0L / 307 / V8
5.7L / 350 / V8
Dual Competition Manifold Back Exhaust System Kit;
GMC Jimmy 1970 5.0L / 307 / V8
5.7L / 350 / V8
Dual Competition Manifold Back Exhaust System Kit;
GMC Jimmy 1971 5.7L / 350 / V8 Dual Competition Manifold Back Exhaust System Kit;
GMC Jimmy 1972 5.7L / 350 / V8
5.0L / 307 / V8
Dual Competition Manifold Back Exhaust System Kit;

Specifications:

Emission Code 4
Exhaust Series Hooker
Material Aluminized Steel
Muffler Type None
Part Type Exhaust System Kit
Product Type Exhaust System
Proposition 65 www.P65Warnings.ca.gov
Sound Level Pipe Only
System Type Manifold-back
Tips None
Tubing Diameter (in) 2.25
Type of Exhaust Manifold-Back

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Hooker Manifold Back Exhaust System 16621HKR: