Teflon Zero Drag Engine Seals

Teflon Zero Drag Engine Seals. Set of two (2) high performance precision-machined teflon crankshaft seal inserts. One of the key ways to improve engine performance is to reduce internal friction and drag wherever possible. These inserts help the stock rubber crankshaft seals reduce their "death grip" on the crankshaft, while still preventing all air and mixture leakage.