This is the Traxxas 2.5R Racing Engine with IPS
(Integrated Pilot Shaft) and Pull-Start.
For use in all Traxxas vehicles that use the TRX 2.5 engine.
** This engine is a .15 engine. The 2.5 refers to a measurement of Cubic **
Centimeter displacement compared to Cubic Inch displacement (.15).
60% More Power that the TRX Pro .15 engine!
Loaded with advanced features such and the free-flowing rear exhaust, the
unique composite slide carb, and innovative porting only found on the most
exotic racing engines.