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1979-1993 Ford Mustang 2.5 inch full-length 304SS race exhaust system

PART# 705013141RHKR

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WARNING: This product is not street legal and may only be used on Racing Vehicles. Racing Vehicles must be used exclusively for racing or other forms of competition. Racing vehicles must not be registered and must never be used on the street. It is illegal to install this product on a registered vehicle and use it on the street.
Aggressive to moderate sound


This Engine Swap exhaust system is designed to offer the best-available ground clearance, best fit and easy installation. This stainless steel exhaust system features an X-pipe designed crossover that offers bolt-in compatibility with BlackHeart engine swap crossmembers, mounts and headers. This rear exit header back system uses factory mounting points for stock like fitment and will clear OE or aftermarket adjustable upper control arms.


  • Designed to work with Hooker Blackheart GM LS or Ford Coyote Engine Swap headers as part of a complete integrated solution (70101350-RHKR, 70101351-RHKR, 70103317-RHKR, 70103318-RHKR, 70103319-RHKR)
  • Full 2.5” diameter system for maximum flow/horsepower potential
  • Constructed from lightweight, 18-gauge, mandrel bent, 304 stainless steel for maximized strength and durability
  • Designed for clearance with OE (Original Equipment) or aftermarket adjustable rear upper control arms
  • System features an X-type crossover offering smoother exhaust flow and resulting power gains higher in the rpm band
  • Optimized bend geometry provides clearance for wide rear wheels/tires (in the factory wheel well)
  • Bolt-in compatible with Hooker Blackheart engine swap transmission crossmember as part of a complete engineered solution (71222016HKR, 71222015HKR)
  • Clears all transmissions listed for use with Hooker Blackheart 1979-1993 Mustang LS and Coyote engine swap systems allowing for several combinations
  • Utilizes factory mounting points for factory-like fitment
  • Tube geometry designed for maximum clearance and hassle-free installation
  • Includes all necessary installation hardware for a hassle-free installation
  • Manufacturer’s limited lifetime warranty


Application1979-1993 Ford Mustang
BrandHooker BlackHeart
Emission Code4
Exhaust SeriesHooker BlackHeart
Material304 Stainless Steel
Product TypeExhaust System
Race OnlyYes
Sound LevelAggressive / Moderate
System TypeHeader-back
Tube Diameter2.5 inch
Tubing Diameter (in)2.5
Part Number705013141RHKR



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

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