The Arrma Infraction V2 6S Handbrake Module is a replacement for the Infraction V2 models, but is a great optional upgrade that allows the use of a rear wheel "handbrake" on the Felony 6S models. Unit is partially assembled and requires installation, servo and an open channel on your transmitter. 
 
Features:
Adds a mechanical brake to the rear wheels of your vehicle, allowing you to perform handbrake turns and initiate drifts
Supplied sub-assembled for quick and simple installation to your vehicle
Manufactured from strong steel and tough composite materials
Requires a standard size servo and a three channel radio system
23, 24 and 25T servo horns supplied
Includes:
(1) Assembled Handbrake Module
(1) 23T Servo Horn
(1) 24T Servo Horn
(1) 25T Servo Horn