Combo Speed R2103 + T-2080SC exhaust line. Very high performance 2 -stroke car engine for competition. Very high manufacturing quality to constantly obtain incomparable performance and impeccable reliability which are the main characteristics of O.S. engines. First world manufacturer of engines for reduced models. Very great ease of start -up and adjustment. New engine for 1/8 track cars replacing the Speed R2102. Used by Official Pilots of the O.S. At the world championship taking place in France from September 8 to 16, 2017. Compared to its predecessor, the R2103 has even more couple at low speed. Available around September 18. Engine delivered with its exhaust line under this reference.