Hooker BlackHeart UEL Header Without Cat

2013-16 Scion FR-S/Subaru BRZ H4, 2.0L 1-5/8" UEL (Unequal Length) Header W/O Cat

PART# 70304301-RHKR

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$679.95   Suggested Retail
$611.95   Your Price
Estimated shipping date: 03/05/2018
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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.


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 +5.17 HP & +7.83 LB.FT torque (w/ UEL header w/o cat) and max dyno gains of +6.6 HP & +10.1 LB.FT torque (w/ Header w/ cat) Note: This is a stock tune
  • Constructed from 1 5/8” diameter, lightweight 18-gauge, 304 stainless steel primary tubes into 2 ½” diameter outlet tube maximizing performance, strength and durability
  • Up to 52% weight savings over OE header manifold, a saving of 11 LBS. (UEL header w/o cat) and 8 LBS. (Header w/ cat)
  • Available in a UEL (Unequal length) header without cat or a near equal length header with cat design
  • UEL (Unequal length) header w/o cat design includes an O2 extension wire and an O2 bung plug
  • Quality welds for strength, longevity, and good looks
  • Utilizes factory mounting points for ease of installation
  • Tube geometry designed for maximum ground clearance and hassle free installation
  • Manufacturer’s limited lifetime warranty


Application2013-2016 Scion FR-S / Subaru BRZ H4, 2.0L
BrandHooker BlackHeart
Emission Code3
Material304 Stainless Steel
Primary Tube Dia.1-5/8 inch
Product TypeHeaders
Race OnlyYes
Part Number70304301-RHKR

Tech Resources


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.


    *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.