Tron 7 Gasser with Tuned pipe 

Great Flight Alex. The Powertune on the Tron is really pulling strong .

that thing looks awesome, like a racing edition

Hellow alex👋🏻👋🏻 have seen your video of the Sab Nitro heli and I wanted to know what engine it has to put on my Sab 580 helicopter and the exhaust pipe. If you could tell me, I would look for it in an airplane model store here in Spain. Thank you. Greetings. Good helicopter and good brand. video✌🏻👍🏻👍🏻