The engine is made by techwell model R12103T, just a different cooling head. The engine is very reliable in tuning and will last a long time. Its a entry-level engine, do not expect high performance with that engine. Have you bought the power pack or just the engine? If not, definitely try the orion pipe! Gives a very good performance to this engine. Improve your driving and when ready for more power, just buy a red dot 3 or mega zx12!