One of the most popular and cost effective performance upgrades you can make to a Harley-Davidson® motorcycle is to replace the stock exhaust with a set of low restriction, high performance mufflers. The stock exhaust pipes and S&S performance mufflers make a great high performance exhaust system with a low price tag. The S&S Slip-On mufflers will increase the performance of any stock engine. This change alone will produce almost eight more horsepower and about five more foot pounds of torque on a stock 88 cubic inch Twin Cam® engine. We also highly recommend the S&S performance mufflers for big inch engines because of the excellent low and midrange torque they provide.

The way StreetWalker Exhausts offers their exhaust systems, with the endless number of choices available helps make customizing a motorcycle something that more owners can enjoy and participate in. It wasn't too long ago if you couldn't make it yourself or afford to have a customizer make it for you, the ability to have a "one-off" custom was a luxury available to only a privileged few. Because of the truly unique products offered by companies like StreetWalker Exhausts the ability to participate affordably in the custom motorcycle market building the bike of your dreams is now within the reaches of alot more enthusiasts.

Never before has such style delivered this level of performance. Big Radius set the standard for a custom look but with the quality and perfection you would expect from Vance & Hines. Featuring beautifully curved 2 1/2” full-coverage heat shields, artistically scalloped end tips, and blue proof show quality chrome. The extra horsepower and torque produced gives the signature hot-rod sound an even bigger bite. This system is the ultimate in style and performance. Baffles, mounting hardware and easy-to-understand instructions are included for a hassle-free, perfect fit every time.