This is the SH Engines .12 Pro Rear Exhaust Nitro Engine. This rear exhaust .12 engine is a great choice for 200mm nitro touring cars and those awesome T5M GT builds (you know who you are ;)

Engine includes one exhaust gasket, one flywheel collet and one T33 SH plug.

Specifications:
Displacement: 2.1CC
Bore: 13.85mm
Stroke: 14.00mm
RPM: 41000RPM
HP: 1.48HP
Weight: 220g