American Custom is giving you the chance to get that deep, thunderous sound you crave at a reasonable price. The company will customize your Harley-Davidson stock slip-on mufflers with the patented Tone-Flex system (starting at $159) that allows you to change your sound and look at any time by installing optional baffles and endcaps. You can also choose premade pipes with the option of sending your stock pipes in for a credit. Select from a range of custom baffles to easily change your sound from an amazing, deep growl to street friendly. Info: American Custom, 800/323-9145, www.AmericanCustom.com.