Hooker BlackHeart Dual Cat-Back Exhaust Kit

2010-16 GM Silverado/Sierra 4.8/5.3L 3" to Dual 2-1/2" Stainless Steel Cat-Back Exhaust System

PART# 705014136RHKR

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Hooker continues to push the boundaries of performance with the BlackHeart line of exhaust products. We are proud to offer these cat-back exhaust systems for 2010-16 GM Silverado/Sierra 1500 trucks. These dual, rear-exit cat-back systems are engineered to offer both premium fitment and maximum performance from your 4.8/5.3L engine


  • Max dyno gains of +17.0 HP & +21.06 LB.FT. torque (Dyno based on 2012 5.3L)
  • Converts the OE side exit exhaust to an aggressive cat back exhaust system with dual tips straight back without any modifications
  • 3" into dual 2-1/2” lightweight, 18-gauge, stainless steel construction maximizing strength and durability
  • Stainless steel, high-flow muffler for optimum performance and no drone
  • Dual 4" diameter, angle-cut, resonated exhaust tips with rolled edge and laser etched Hooker BlackHeart logo for maximum styling
  • Quality welds for strength, longevity and good looks
  • Tube geometry designed for maximum ground clearance
  • A stainless steel flex pipe is incorporated for maximum durability and eliminates any in-cabin vibrations
  • Manufacturer's limited lifetime warranty
  • Fits all ½ ton (2 & 4wd), 143.5 wheelbase trucks:
  • *2010-13 all crew cabs & ext. cab w/ 6.6 ft. bed
  • *2014-16 crew cab w/ 5.75 ft. bed & ext. cab w/ 6.6 ft. bed


Application2010-2016 GM Silverado/Sierra 4.8/5.3L
BrandHooker BlackHeart
Emission Code1
MaterialStainless Steel
Muffler Type High Flow, Straight Through
Product TypeCat-Back Exhaust Kit
Tube Diameter3" to Dual 2.5"
Part Number705014136RHKR


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

    *Free Shipping & Handling only offered to the contiguous US on orders over $100.

    Some parts are not legal for use in California or other states with similar regulations.