13516101 The Pro Series mufflers work on all applications ranging from street trucks, diesel pullers and RV pushers to every class of racing on dirt or asphalt. During development, at the dyno and track, the Pro Series mufflers consistently delivered performance that is equal to or surpasses open pipe systems, while dramatically reducing sound levels across the RPM range. Features: High horsepower apps include diesels/RVs/trucks Durable fully welded 16 gauge stainless steel case 409 Stainless Steel Internal Construction Race Proven Design About Flowmaster Flowmaster® is a household name, and for good reason. They've built legendary exhaust systems and mufflers for decades, and now offer performance air intakes, catalytic converters, and headers to give your hot rod performance to match the iconic Flowmaster sound. SPECS Automotive Item Grade High Performance Body Height (in) 6 Body Length (in) 16 Body Width (in) 6 Brand Flowmaster Color Black Emission Code 5 Finish Paint Fitment Universal Inlet Connection Type Pipe Connection Inlet Diameter (in) 3.5 Inlet Position Center Material 409 Stainless Steel Muffler Series Pro Series Muffler Type Laminar Flow Outlet Connection Type Pipe Connection Outlet Diameter (in) 3.5 Outlet Position Center Overall Length (in) 22 Product Type Race Products Reversible No Shape Round Sound Level Moderate Sound Type of Muffler Laminar Flow Vehicle Type Race UPC 700042021369 California Proposition 65 Chemical Name Chromium (hexavalent compounds) Nickel (Metallic) California Proposition 65 Required Yes Part Number 13516101