Save your money and stay stock. I can't leave anything alone and always modify things. So I went with T-Motors (Marginal difference) not worth the cost. Extended motor mounts ( A major pain to install and no noticable change ) T-Motor Carbon Props (They are OK but not $80.00 worth) Adjustable Carbon Landing Gear and dual Batteries ( Looked great caused it to be very sluggest). So after trying to convince myself the above items were an improvement I'm back to stock except prop guards. May keep the carbon props on. Live and Learn !!!