Macs New Check out these links! Smoke Installation Pictures Smoke Video Effective Pumpless System High temperature all metal check valve Easy installation - Great performance with MACS MUFFLER MACS MUFFLER even has pressure tap holes spot-drilled No guesswork! Also for use with most mufflers & most 4-cycle systems Item Price Stock # Smoke System 31.95 9521 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