ARL-2603 Performance Muffler

The ARL-2603 Performance Muffler is the smallest-diameter and most compact performance muffler in the ARL lineup. Its narrow 4.5-inch body is designed for applications where packaging space is limited and exhaust flow and aggressive sound take priority over maximum sound suppression.

The 2603 delivers a sharp, aggressive performance tone with significantly greater volume than the street-oriented models while maintaining a compact and lightweight design.

Designed in-house using CAD, tested in real-world applications, and manufactured in-house by Aronson Racing Lab.

Construction & Features

• Engineered and manufactured in-house
• High-grade 304 stainless steel standard
• 321 stainless steel available for extreme-temperature, turbocharged, and race applications
• Precision TIG-welded construction
• Fully back-purged during welding to protect the internal weld surface and maintain weld integrity
• Compact, lightweight construction
• Designed for maximum practical exhaust flow
  

Character: Sharp, aggressive, compact, and performance-focused

Best For: High-performance street cars, tight packaging, aggressive exhaust systems, and competition-oriented builds

Installation Options:

Please select the appropriate connection type for your exhaust system before ordering.

• V-Band: Includes a complete V-band assembly with the clamp and both mating flanges. The selected V-band flange will be precision TIG-welded directly to the product, with the mating flange and clamp supplied for installation.
• Slip-Fit: The product will be configured with a slip-fit connection and includes the required exhaust clamp.
• No Connection: For customers who plan to weld directly to the exhaust system or install their own clamp/connection hardware.

Connection Type Notice:

Any connection option requiring a flange, V-band, or other connection component to be welded to the product is non-refundable once welded. Please verify all measurements, connection types, and exhaust-system layout before ordering. Custom-welded connection components cannot be returned or exchanged due to incorrect sizing, fitment, or customer planning errors.