BLOX Racing's all-black and standard version muffler delete kits are made from T304 stainless steel and TIG-welded for durability and reliability against cracks and leaks. Each features OEM location hangers and includes new gaskets and hardware. BLOX Racing Muffler Delete Kits replace the OEM mufflers and greatly reduce the bulk and weight associated with them.
Key Features
- T304 Stainless Steel Construction: Full T304 stainless steel tubing resists corrosion and withstands high heat for long-term durability under track or street conditions.
- Mandrel Bent Design: Precision mandrel bends ensure smooth uninterrupted exhaust flow reducing backpressure and boosting horsepower across the RPM range.
- Direct Bolt-On Fitment: Engineered to bolt directly to OEM midpipes and hangers using factory mounting points for hassle-free installation.
- Significant Weight Savings: Reduces rear exhaust weight from 20+ lbs per OEM muffler to just 3.2 lbs per delete pipe improving handling and acceleration.
- Polished Mirror Finish: High-polish finish enhances visual appeal and simplifies cleaning while maintaining heat dissipation properties.
- Includes all necessary gaskets clamps and hardware for OEM compatibility.
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| 2015-2021 | Subaru | WRX | |
| 2015-2021 | Subaru | WRX STI |
Specifications
| Manufacturer | BLOX Racing |
|---|---|
| Manufacturer Part Number | BXEX-51104 |
| Product Type | Muffler Delete Pipes |
| Fitment Type | Vehicle specific, verify the complete application |
What's Included
One new BLOX Racing product in the exact configuration identified by manufacturer part number BXEX-51104. Only components expressly stated for this exact part number are included.
About BLOX Racing
BLOX Racing develops performance intake, exhaust, fuel, engine, drivetrain, suspension, wheel-hardware, and interior components for street and competition applications. Selection remains exact-part-number and exact-application specific.
Related BLOX Racing Products
- BLOX Racing 15-21 Subaru WRX / 15-21 Subaru WRX STI Muffler Delete Kit - Black Tip
- BLOX Racing 12+ Subaru/Toyota BRZ / FRS / GT86 Muffler Delete Kit
- BLOX Racing 2022+ WRX Muffler Delete / Axle Back Single Wall 4in - Matte Black Tips
Browse the BLOX Racing collection for related performance components.
Frequently Asked Questions
Will this fit my 2015-2021 Subaru WRX?
That application is listed, but confirm the complete year, make, model, trim, transmission, factory equipment, dimensions, and every BLOX Racing fitment note before ordering.
Does this include everything needed for installation?
Only the components expressly listed for this exact BLOX Racing part number are included. Gaskets, fluids, tuning, adapters, fasteners, wiring, tools, and companion parts may be required depending on the application.
Will tuning or calibration be required?
It may be required when airflow, fueling, boost, throttle control, emissions equipment, or engine management changes. Confirm the manufacturer requirements for the exact vehicle and combination before installation.
Installation Instructions
Follow the current BLOX Racing instructions and vehicle service information for this exact part number. Verify fitment and included components before disassembly, use the specified tools and torque values, check all clearances and connections, and inspect the installation before operation. Professional installation is recommended.
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