Yoshimura Muffler Bracket Kit. Dropping weight from your bike is one of the most efficient ways of improving lap times on the track. If you have a Yoshimura exhaust system, why not take weight savings to max with this lightweight aluminum muffler bracket. Replaces the heavy, bulky stock unit and provides a secure mount for your Yoshimura exhaust system. Aluminum bracket features a durable black anodized finish to compliment the bike's already sleek styling. Kit includes an aluminum muffler bracket, stainless steel mounting hardware, and detailed installation instructions. Note: Aluminum muffler bracket is designed for use with Yoshimura exhaust systems ONLY. Note: ONLY for use with Yoshimura GSX-R1000 Full Systems.