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Hooker BlackHeart

Hooker BlackHeart Cat-Back Exhaust System

2015-2021 Subaru WRX/STI 2.0L-2.5L, 3 inch with Muffler and Resonator, 304SS

Part # BH9303
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This Cat-Back system uses high flow straight through mufflers and a resonator to deliver civilized attitude with a deep, sporty tone from your 2015-2021 Subaru WRX/STI with 2.0 or 2.5L engine. This system is constructed from 304 stainless steel providing maximum durability and corrosion resistance. It uses 3 inch tubing, and dual polished 4 inch tips. Simple installation is made possible by using the factory mounting points.


  • Bolts to OEM (Original Equipment Manufacturer) Mid pipe without adapters for easy installation
  • Constructed from 3 inch lightweight, 18-gauge, mandrel bent, 304 stainless steel for maximum strength and corrosion resistance
  • High-flow straight through muffler design for a deep, sporty exhaust note
  • Mitered Y-Pipe designed to maximize performance and increase exhaust flow
  • 4 inch dual wall, angle-cut, polished 304 stainless steel tips with laser etched Hooker BlackHeart logos for aggressive styling
  • 100% quality hand TIG welded construction for added 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

About Hooker BlackHeart

The BlackHeart team utilizes the latest technology and materials to design exhaust systems, engine swap kits, and mufflers for both import and domestic cars and trucks. Hooker Blackheart is platform-engineered to provide superb performance, aesthetics, and fitment.

Brand Hooker BlackHeart
Emission Code5
Exhaust SeriesHooker BlackHeart
Material304 Stainless Steel
Muffler TypeHigh Flow, Straight Through
Product TypeExhaust System
Sound LevelAggressive / Moderate
System TypeCat-back
Tube Diameter3 inch
Tubing Diameter (in)3
WarrantyLimited Lifetime Warranty
Part NumberBH9303

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Limited Lifetime Warranty: See Details

*Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

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