2015 Mustang GT Hooker Blackheart Cat-Back Exhaust System (mufflers)YouTube Button
2015 Mustang GT Hooker Blackheart  Cat-Back Exhaust System (no mufflers)YouTube Button
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Hooker BlackHeart Cat-Back Exhaust kit (w/ X-Pipe & w/ mufflers)

2015-2017 Mustang GT 5.0L- V8 304SS 3" Cat-Back Exhaust System + X-Pipe (with mufflers) Max dyno gains of +11.02HP & +17.98 LB. FT torque

PART# 70503302-RHKR

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At the heart of any performance vehicle is the exhaust system. Hooker with its classic heart logo has been at the core of the exhaust industry for decades. Many of the most powerful vehicles on the planet have used Hooker Headers. Hooker continues to push the boundaries of performance with the new BlackHeart line of performance exhaust systems for popular late model vehicles. The BlackHeart line is truly a platform designed full exhaust program. From the cylinder head flange to the tailpipe, the BlackHeart line is engineered to provide maximum exhaust velocity, ground clearance, style, performance, and quality! When it's time to tear the heart out of the competition – choose BlackHeart!


  • Max dyno gains of +11.02HP & +17.98 LB. FT torque
  • All Hooker BlackHeart products are constructed of lightweight 18-gauge, 304 Stainless Steel material maximizing strength and durability
  • 100% hand MIG welded construction
  • Quality welds for strength, longevity, and good looks
  • High flow, straight through 304 Stainless Steel construction muffler design produces an aggressive exhaust note under acceleration and a mellow tone at idle
  • 4” dual wall polished 304 Stainless Steel tips with laser etched Hooker logo adding maximum styling to your ride
  • Cat-Back utilizes factory mounting points for ease of installation
  • Tube Geometry designed for maximum ground clearance and hassle free installation
  • Cat-Back Exhaust System will work with either OE Exhaust Manifolds or Hooker BlackHeart Shorty Headers w/ Factory Catalytic Converters
  • All Installation Hardware Included
  • Manufacturer's Limited Lifetime Warranty


Application2015-2017 Mustang GT V8, 5.0L
BrandHooker BlackHeart
Emission Code1
Product TypeCat-Back Exhaust Kit
Tips304 Stainless Steel
Tube Diameter3 inch
Tube Material304 Stainless Steel
Type of MufflerHigh Flow, Straight Through
Part Number70503302-RHKR


This part is legal for use on Emissions Controlled Vehicles when used in accordance with the manufacturers application guide because it has a California Air Resources Board Executive Order number or is a direct or consolidated replacement part.

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle
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