Hooker 3901HKR - Competition Header - Black Finish - Tube Size 1.625 in. OD x 29 in. - Collector Size 2.5 in./Length 8 in.

Part #3901HKR

Hooker 3901HKR - Competition Header - Black Finish - Tube Size 1.625 in. OD x 29 in. - Collector Size 2.5 in./Length 8 in.

Part #3901HKR
$399.95
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Product Info

Hooker Competition Headers are made from durable 16-gauge steel and have 5/16 in. thick flanges that are heavy enough to maintain header integrity, yet pliable enough to seal each exhaust port. Tubing is mandrel-bent to maintain metal strength and provide consistent tube diameter at radii to increase performance. Breaking in an engine with ceramic coated headers WILL result in damage to the coating and will VOID all warranties. Ceramic coated headers require several heat cycles to fully cure before they will withstand extreme heat. Hooker recommends using cast iron exhaust manifolds or old headers to break in new engines to avoid coating damage. The use of header wraps can cause the header tubes to crack or rust due to excessive heat and moisture build-up. Hooker does not recommend the use of header wraps as this will void the warranty. Will not fit column mounted standard or floor mounted automatics or Cutlass Supreme models.

Specs:

  • Quantity: Sold as a pair.
  • Collector Attachment: 3-bolt flange
  • Collector Diameter: 2.500 in.
  • Bolts/Studs Included: Yes
  • Gaskets Included: Yes
  • Header Style: Full-length
  • Header Material: Steel
  • Header Finish: Painted
  • Weld-Up: No
  • Primary Tube Diameter (in): 1 5/8 in.
  • Tuned: No
  • Primary Tube Gauge: 16-gauge
  • Flange Style: Standard
  • Flange Thickness (in): 5/16 in.
  • Reducers Included: No
  • Y-Pipe Included: No
  • Motor Mounts Included: No
  • Transmission Mount Included: No
  • Primary Tube Length (in): 29 in.

Coming from humble beginnings in 1962 when the pioneer Gary Hooker designed a header for his Chevy, Hooker Headers slowly took root in South Ontario in the subsequent years. This lead to an arms race on who could dish out the best exhaust systems in the market - fortunately, Hooker had a dedicated team of engineers and technicians that toiled countless hours away to design a competent line of exhaust components and systems that produced significant power gains in a balanced engine to exhaust ecosystem. Hooker products gained more acclaim as the 70s and 80s rolled in, becoming the first choice of drag racers when it came to headers and offerings like the straight-thru glass pack mufflers becoming the craze of these motorheads.

Hooker also delved into the non-enthusiast and niche markets, offering bicycle, motorcycle, and truck parts to augment the service of these daily drivers in a more economical setting. Engine swaps became a testament to Hooker's commitment to quality and performance, making headers for various big and small block applications. Other Hooker landmark designs and patents include the Metallic Ceramic Thermal Barrier coating and the Darksides black ceramic coating, which are responsible for extending the lifespan of their headers, and the Aerochamber Muffler, which remains as one of the most advanced designs in the market to date. The exhaust aftermarket was never the same when Hooker walked its talk.

Brand:
Part Number:3901HKR
UPC:700414009384

Description

  • Quantity: Sold as a pair.
  • Collector Attachment: 3-bolt flange
  • Collector Diameter: 2.500 in.
  • Bolts/Studs Included: Yes
  • Gaskets Included: Yes
  • Header Style: Full-length
  • Header Material: Steel
  • Header Finish: Painted
  • Weld-Up: No
  • Primary Tube Diameter (in): 1 5/8 in.
  • Tuned: No
  • Primary Tube Gauge: 16-gauge
  • Flange Style: Standard
  • Flange Thickness (in): 5/16 in.
  • Reducers Included: No
  • Y-Pipe Included: No
  • Motor Mounts Included: No
  • Transmission Mount Included: No
  • Primary Tube Length (in): 29 in.

Vehicle Fitment

Year Make Model Submodel Engine Size
1968 - 1969 OLDSMOBILE 442 BASE 6.6L V8 GAS
1970 OLDSMOBILE 442 BASE 7.5L V8 GAS
1968 OLDSMOBILE CUTLASS BASE, S 5.7L V8 GAS, 6.6L V8 GAS
1969 - 1971 OLDSMOBILE CUTLASS BASE, S 5.7L V8 GAS
1972 OLDSMOBILE CUTLASS BASE, Cruiser, S 5.7L V8 GAS
1973 - 1974 OLDSMOBILE CUTLASS BASE, S 5.7L V8 GAS
1975 OLDSMOBILE CUTLASS 442, BASE, S 5.7L V8 GAS
1976 OLDSMOBILE CUTLASS Colonnade S, S 5.7L V8 GAS
1977 OLDSMOBILE CUTLASS 442, Colonnade, Colonnade S, S 5.7L V8 GAS, 6.6L V8 GAS
1975 - 1976 OLDSMOBILE CUTLASS SALON BASE 5.7L V8 GAS
1977 OLDSMOBILE CUTLASS SALON BASE 5.7L V8 GAS, 6.6L V8 GAS
1976 OLDSMOBILE CUTLASS TIARA BASE 5.7L V8 GAS
1977 PONTIAC FIREBIRD BASE, Esprit, FORMULA, TRANS AM 5.7L V8 GAS, 6.6L V8 GAS
1978 PONTIAC FIREBIRD FORMULA, TRANS AM 6.6L V8 GAS

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