2015-2021 Subaru WRX / STi Muffler Delete Axle Back 4 Inch Quad Tips Exhaust

Upgrade the sound, performance, and rear-end appearance of your Subaru WRX/STI VA with this Muffler Delete Axle Back 4 Inch Quad Tip Exhaust, designed to deliver a more aggressive exhaust note and race-inspired look.

This axle-back exhaust system replaces the factory muffler section with a muffler delete layout, helping improve exhaust flow while increasing sound volume and performance character.

Finished in anodized silver with round angle-cut double-wall quad tips, this exhaust provides a bold rear profile and direct fitment for 2015-2021 Subaru WRX and STI models.

Product Specifications

Key Features

• Designed for 2015-2021 Subaru WRX and STI VA models
• Muffler delete axle-back design creates a more aggressive exhaust note
• Improves exhaust flow compared to the factory muffler section
• 4 inch quad round angle-cut double-wall tips add a bold rear-end appearance
• Anodized silver finish provides a clean performance look
• Manufactured to ASTM durability standards as stated by the source
• Includes hangers and gaskets for easier installation

Configuration Options

• Muffler delete axle-back exhaust layout
• 4 inch quad tip design with anodized silver finish

Package Includes

• Muffler delete axle-back exhaust system
• 4 inch quad exhaust tips
• Hangers
• Gaskets
• Mounting hardware as supplied

Note: Professional installation is recommended. Exhaust sound level may be louder than factory due to the muffler delete design. Check local noise and emissions regulations before installation.

Installation

• Direct bolt-on installation to factory exhaust piping
• Uses supplied hangers, gaskets, and hardware where applicable
• Align exhaust tips before final tightening
• Check for exhaust leaks after installation
• Professional installation is recommended for best fitment and exhaust alignment

Fitment

• 2015-2021 Subaru WRX VA
• 2015-2021 Subaru STI VA

United States: Free shipping available to the lower 48 states across all items. Other states will incur a shipping charge.

Worldwide: Free shipping is available for Complete Headlights, Taillights, DRLs. For custom headlight retrofits, carbon fiber products, and performance products, there will be a shipping charge.  

Please note:
• For Retrofits, you are purchasing a headlight modification service.
• If you select "Shipping own headlights to BayOptiks for modification", you are required to send us your headlights.
• If you choose "Purchase new OEM headlights", we will order and modify a new OEM headlight for you.
• Once your customizations are complete, we will ship it to you!

• Complete Headlights: 3-5 business days for order processing plus shipping time.
• Custom & Pre-Built Headlights: 6-8 weeks depending on the complexity and component availability.
• New OEM and cores: 6-8 weeks plus an additional 4-8 weeks as these are special orders base on the vehicle VIN due to different versions (North American, European, etc.)
• DRLs, Taillights, Brake Pads, and Carbon Fiber Aero: 3-5 business days for order processing, plus shipping time.
• Lens Replacements: 1-3 weeks plus shipping time.

Please note, we do not have control over the time frames of our vendors, manufacturers, and delivery services as they may delay processes in regards to components and shipment.