Looking for the most aggressive sounding Flowmaster muffler available? Flowmaster’s new Super 10™ series mufflers are so aggressive that we can’t even recommend them for use on street driven vehicles. Best suited to racing applications, they utilize the same patented Delta Flow performance technology used in our highly popular Super 40 and Super 44 series mufflers. Best of all they are constructed with durable 409S stainless steel for long life and are offered in a variety of inlet/outlet configurations. Backed by Stainless Steel Lifetime Limited Warranty, these short, single chamber mufflers are not for the faint of heart delivering as close to open pipe sound as is possible. If you want high impact sound, the Super 10 series mufflers could be just the ticket.