4. Yoshimura Suzuki RM-Z450 2008-16 Signature RS-4 Muffler, $425.00
Yoshimura is a well-recognized name in the off-road world as well as the streebike world, and the work that went into developing its RS-4 muffler design is the very same that helped Ryan Dungey winning the AMA 450 Supercross and Motocross championships as a rookie in 2010 and again in 2012. Yosh is the preferred exhaust manufacturer of the GEICO Honda team as well. The budget-conscious RS-4 offers a unique design that provides an increase in power while minimizing the roar of a your typical aftermarket exhaust. The durable stainless-steel muffler features a Polyresonant duplex chamber, a two-staged stepped baffle and an innovative carbon cone end cap. It’s good stuff that’s easier to stuff in a stocking than a full system, too.