842541 This two chamber design incorporates Flowmaster's Delta Flow® technology. The Delta deflectors generate increased scavenging for better performance and reduced interior sound. Milder exterior tone and reduced interior resonance over standard 40 series. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability. Features: No internal packing to blowout Excellent Street/Strip and Off Road application Race proven Delta Flow technology Durable fully welded 409SS stainless steel 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) 4 Body Length (in) 13 Body Width (in) 9.75 Brand Flowmaster Color Black Emission Code 5 Finish Paint Fitment Universal Inlet Connection Type Pipe Connection Inlet Diameter (in) 2.5 Inlet Position Offset Material 409 Stainless Steel Mount Type Uses New Hangers (Not Included) Muffler Series 40 Series Delta Flow Muffler Type Chambered Outlet Connection Type Pipe Connection Outlet Diameter (in) 2.5 Outlet Position Center Overall Length (in) 19 Product Type Street Mufflers Reversible No Shape Oval Sound Level Aggressive Sound Type of Muffler Chambered Vehicle Type 4/6 CYL Engine Classic Muscle Car Late Model Muscle Car Street Rod Street/Strip Truck/SUV UPC 700042018352 California Proposition 65 Chemical Name Chromium (hexavalent compounds) Nickel (Metallic) California Proposition 65 Required Yes Part Number 842541