Flexible Quiet Muffler System Be sure to check out our new Motor Muffler Thread Index This system can be purchased in two ways: A.)   As a pre-assembled system or as a muffler extender system. B.)   As seperate items: motor adapter (straight or 90°), flexible tubing and muffler pipe. Return to Product Line Macs Products 7935A Carlton Rd. Sacramento, CA 95826 Home | Product Line | Tuning Info | One Piece Muffler Pumpless Smoke System | Videos | R/C Links | Order Form