Hooker BlackHeart Y-Pipe w/ High-Flow Cats

2009-2010 Ford F-150, 5.4L SS, Y-Pipe w/High-Flow Cats

PART# 70703404-RHKR

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Hooker continues to push the boundaries of performance with the BlackHeart line of exhaust products. Hooker BlackHeart is proud to offer these Y-Pipes for 2009-10 Ford F-150 5.4L trucks. These Y-pipes feature high-flow catalytic converters and are engineered to offer both premium fitment and maximum performance from your 5.4L engine.


  • Max Dyno gains of +11.16 HP & +15.15 LB.FT. Torque (Dyno combined w/ BlackHeart Shorty Header P/N 70303403-RHKR)
  • Constructed from 3” lightweight, 18 gauge, mandrel bent, stainless steel maximizing strength and durability
  • Features stainless steel high-flow catalytic converters for optimum performance
  • Retains factory O2 sensors
  • 100% quality hand-welded construction for strength, longevity and good looks
  • Utilizes factory mounting points for factory-like fitment
  • Tube geometry designed for maximum clearance and hassle-free installation
  • All hardware included
  • Manufacturer’s limited lifetime warranty


Application2009-2010 Ford F-150 5.4L
BrandHooker BlackHeart
Emission Code3
MaterialStainless Steel
Product TypeY-Pipe
Tube Diameter3 inch
Part Number70703404-RHKR


This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.

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