Fits 1955-1957 Chevrolet Bel Air Chambered Muffler-Stainless SFS425110-JHPR decals-and-emblems Maximum increases on the dyno

Maximum increases on the dyno revealed +16 hp and +22 lb-ft at the rear wheels

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Fits 1955-1957 Chevrolet Bel Air Chambered Muffler-Stainless SFS425110-JHPR decals-and-emblems Maximum increases on the dynoStreet Flow Stainless, 1 Chamber Performance Muffler, Aggressive Tone, 16 Gauge 409 Grade Stainless Steel, Premium Powder Coat Finish, 2. 5" Offset In, 2. 5" Center Out, 5 Year Limited Warranty. Features: Handcrafted Chambered Mufflers Installer Friendly Design With Unpainted Ports 409 Grade 16 Gauge Stainless Steel Construction High Heat Premium Black Powder Coat Finish North American Made Product Aggressive Tone Specs: Body Length (IN) 6. 5 Body