{"product_id":"arl-2603-performance-muffler","title":"ARL-2603 Performance Muffler","description":"\u003cp class=\"MsoNormal\" style=\"margin-bottom: 0in; line-height: normal;\"\u003eThe 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.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 0in; line-height: normal;\"\u003eThe 2603 delivers a sharp, aggressive performance tone with significantly greater volume than the street-oriented models while maintaining a compact and lightweight design.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 0in; line-height: normal;\"\u003eDesigned in-house using CAD, tested in real-world applications, and manufactured in-house by Aronson Racing Lab.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 0in; line-height: normal;\"\u003eConstruction \u0026amp; Features\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\" style=\"line-height: normal;\"\u003eEngineered and manufactured in-house\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"line-height: normal;\"\u003eHigh-grade 304 stainless steel standard\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"line-height: normal;\"\u003e321 stainless steel available for extreme-temperature, turbocharged, and race applications\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"line-height: normal;\"\u003ePrecision TIG-welded construction\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"line-height: normal;\"\u003eFully back-purged during welding to protect the internal weld surface and maintain weld integrity\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"line-height: normal;\"\u003eCompact, lightweight construction\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"line-height: normal;\"\u003eDesigned for maximum practical exhaust flow\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 0in; line-height: normal;\"\u003eCharacter: Sharp, aggressive, compact, and performance-focused\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 0in; line-height: normal;\"\u003eBest For: High-performance street cars, tight packaging, aggressive exhaust systems, and competition-oriented builds\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 0in; line-height: normal;\"\u003eInstallation Options:\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 0in; line-height: normal;\"\u003ePlease select the appropriate connection type for your exhaust system before ordering.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\" style=\"line-height: normal;\"\u003eV-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.\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"line-height: normal;\"\u003eSlip-Fit: The product will be configured with a slip-fit connection and includes the required exhaust clamp.\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"line-height: normal;\"\u003eNo Connection: For customers who plan to weld directly to the exhaust system or install their own clamp\/connection hardware.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 0in; line-height: normal;\"\u003eConnection Type Notice:\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 0in; line-height: normal;\"\u003eAny 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.\u003c\/p\u003e","brand":"Aronson Racing Lab","offers":[{"title":"2.5\" Inlet\/Outlet | 11\" L × 4.5\" D","offer_id":44624435216472,"sku":null,"price":375.0,"currency_code":"USD","in_stock":true},{"title":"3\" Inlet\/Outlet | 11\" L × 4.5\" D","offer_id":44624435347544,"sku":null,"price":375.0,"currency_code":"USD","in_stock":true},{"title":"3.5\" Inlet\/Outlet | 11\" L × 5\" D","offer_id":44624435478616,"sku":null,"price":375.0,"currency_code":"USD","in_stock":true},{"title":"4\" Inlet\/Outlet | 11\" L × 5\" D","offer_id":44624435609688,"sku":null,"price":375.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/4533\/9224\/files\/ARL-2603.png?v=1787142739","url":"https:\/\/aronsonracinglab.com\/products\/arl-2603-performance-muffler","provider":"Aronson Racing Lab ","version":"1.0","type":"link"}