This is the O.S. Speed 21XZ-B Spec II Tuned Off-Road Competition Buggy Engine. Since their inception, drivers around the world have equipped their vehicles with O.S. Speed engines because they demand a race-winning performance edge.
This is the O.S. T-2060SC WN One Piece Tuned Pipe With Manifold. This is the one piece variety and requires an off-road manifold, which attaches to the tuned pipe using three small springs (not included).
This is the O.S. 21XZ-B Off-Road Competition Buggy Engine
This is the O.S. Max .21 TM Engine with the Revo Manifold (also fits Traxxas Slayer). This engine will be a direct drop in for the Traxxas 2.5 and 3.3 Revo or the Slayer Pro. The .21 TM will adapt directly to the Traxxas EZ start or pull start systems. The O.S. .21 TM engine is for serious racers and backyard bashers alike that are ready for some major...