Product Details Install the extra-durable ARRMA Metal Diff BOOST Box option part package and bring out the beast in your 4X2 BOOST, MEGA, or 3S basher. Included are strong, all-metal front and rear diffs with full metal ring gears, input gear, and internal gears. In The Box (2) Assembled Metal Gear Diffe....

Product Details Ready for the next level of ARRMA RC bashing performance? The ARRMA 3S Brushless BOOST Box upgrade package comes with everything you'll need to increase the speed capabilities of any 4X2 BOOST or MEGA vehicle, including a 3S brushless motor and ESC*. In The Box (1) 3S Spektrum Smart Brushle....

Product Details Along with speed and toughness, ARRMA bashers provide an easy upgrade path for reaching even higher performance. Improve the stability of any ARRMA GRANITE or ARRMA VORTEKS vehicle by widening its track with the Wide Arm BOOST Box option part package. In The Box (1) Assembled Front Left A-Arm (1)....

Product Details Add the extra durability of the ARRMA 4S transmission to your ARRMA 4X2 BOOST, MEGA, or 3S vehicle using the ARRMA Metal Slipper and Metal Input Gears BOOST Box upgrade package. Then you're ready to power up and go from bashing to all-out blasting! In The Box (1) Assembled Metal Slipper Clutch With 57T....

Product Details ARRMA BOOST option part packages make it easy to upgrade your RC basher as your skills grow. Get your 4X2 BOOST or MEGA vehicle brushless-ready with the ARRMA Metal Slipper Power Module BOOST Box. Then just add whatever ESC and motor you prefer! In The Box (1) Assembled Brushless Power Module (....