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Hooker 7520-1HKR Competition Long Tube Headers - Ceramic Coated

Part # 7520-1HKR Be the first to write a review

Compatible with 1975-1991 Blazer/Jimmy/Yukon/Tahoe 2DR. (4WD), 1975-1987 1/2, 3/4 & 1 Ton Truck (4WD): 396-502ci engines, 1.75 in. Primary Tube diameter x 31 in., 3.0 in. Collector, 8 in. Collector Length, Header Port Shape: Same As Engine Port;

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Hooker 7520-1HKR Competition Long Tube Headers - Ceramic Coated

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Hooker Competition headers offer the best value in the high performance header market. Designed for the value-conscious buyer who is running either a stock or mildly-modified engine, Hooker Competition headers offer premium features at a very competitive price. Made of durable 16 gauge mild steel tubing, the Hooker Competition header design utilizes a long transition collector to reduce back pressure and increase exhaust flow. A perfect sealing surface is assured with the 5/16 in. machined flanges, with welded O-ring seals. Experience has proven that this flange size is ideal to maintain header integrity and be pliable enough to seal each exhaust port. Tubing is mandrel-bent to maintain metal strength and provide consistent tube diameter at radii to maximize performance. Hooker Competition headers have a standard finish that features a heat-cured, high-heat-resistant paint. Optionally, the famous Hooker Ceramic Thermal Barrier Coating is available.

Features:

  • Tuned-length primary tubes for street performance
  • Mandrel-bent tubing for smooth exhaust flow
  • Light weight & sturdy 16 gauge tubing
  • Long transition collector for decreased back pressure
  • 5/16” machined flanges for a perfect seal
  • Industry’s best welds for durability
  • Designed for easy, trouble-free fit
  • All necessary hardware included for a complete installation
  • Works with factory power steering, power brakes and air conditioning
Brand Hooker
Emission Code4
Product TypeLong Tube Headers
UPC090127067482
Manufacturer Part Number7520-1HKR
Part Number7520-1HKR
4

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

Instructions for Part# 7520-1HKR
Will not fit with Turbo 400 unless transmission crossmember is set back 2 in. at the mount. Breaking in an engine with ceramic coated headers WILL result in damage to the coating and will VOID all warranties. Hooker recommends using cast iron exhaust manifolds or old headers during your engine break-in period to avoid damaging your coated damage. Please call Hooker tech service at 270-781-9741 for additional information regarding ceramic coated exhaust products. 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. Hooker long tube headers do not come with header reducers.
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