The Flowmaster 843015 Super 10 Series Single Chamber Muffler is constructed of 409S stainless steel and intended for customers who desire the loudest and most aggressive sound they can find. Because these mufflers are so aggressive, they are recommended only for off-highway use and not for street-driven vehicles. These mufflers utilize the same patented Delta Flow technology that is found in Flowmaster's other Super Series mufflers to deliver maximum performance. Constructed of 16-gauge 409S stainless steel and fully MIG-welded for maximum durability.• Race-proven Delta Flow technology• Compact size for easy fitment• 409S stainless steel construction• Super 10 sound levelSpecsBody Dimensions: 4"H x 9.5"W x 6.5"LBody Material: 409 Stainless SteelInlet Connection: Slip-FitInlet Inside Diameter: 3"Inlet Outside Diameter: 3.13"Muffler Overall Length: 12.5"Inlet Location: CenterOutlet Location: CenterOutlet Inside Diameter: 3"Outlet Outside Diameter: 3.13"Sound Level: AggressiveFit: UniversalVehicle Type: Muscle Car, Street/StripPart Number: 843015 Race-proven Delta Flow technology Constructed of 16-gauge 409S stainless steel Fully MIG-welded for maximum durability | Flowmaster 843015 Super 10 Series Chambered Muffler