Freewing F4 Phantom 90mm TrueFire and BlueFire LED Afterburner Style:Select-A-Fire BlueFire 4S (40mm Motor) Universal Mount It gets really good around

It gets really good around 30% throttle input

Home Depot carries it for $15 a roll and it will last you a life time

This afterburner is for motor PN 2952-2100Kv

To map the throttle with a Spektrum radio follow these steps-

Freewing F4 Phantom 90mm TrueFire and BlueFire LED Afterburner Style:Select-A-Fire BlueFire 4S (40mm Motor) Universal Mount It gets really good aroundTwo options are available: 6S system PN 36IN 6S balance lead 36mm diameter inrunner motor PN 3668 1960 8S System PN UNIV options for a 4S or 6S balance lead connector (See our note below on series wired battery setups). Works with motor PN 4075 1350kv 40mm diameter inrunner motor. For the 8S PN 4075 1390Kv 40mm diameter inrunner motor we will provide a universal (UNIV) mount mount. See our Universal Mount instructions here https: fiftytwoeightyrc. com