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Hooker 7537-4HKR Competition Long Tube Headers - Titanium Ceramic Coated

Part # 7537-4HKR Be the first to write a review

Compatible with 75-77 Cutlass/442, Pontiac Firebird/Trans Am: 350-403, Tube Size 1.625 in. O.D. x 29 in., Collector Size 2.5 in. O.D., Collector Length 8 in., Port Shape: Same As Port

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Hooker 7537-4HKR Competition Long Tube Headers - Titanium 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
Brand Hooker
Emission Code4
Product TypeLong Tube Headers
UPC090127068175
Manufacturer Part Number7537-4HKR
Part Number7537-4HKR
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# 7537-4HKR
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. 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.<br><br>Will not fit column mounted standard or floor mounted automatics or Cutlass Supreme models. Hooker long tube headers do not come with header reducers.
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