Introduction: Whether you're looking for ways to upgrade your beginner-level 4X2 MEGA BOOST or want to take your 4X4 MEGA or 3S RC basher to the next level, you can improve the stability of any ARRMA GRANITE or VORTEKS — especially in curves — by widening its track with this Wide Arm BOOST Box option package. In addition to wishbones and turnbuckles, the ARRMA Wide Arm BOOST Box includes a QR code that links to a step-by-step assembly video for easy installation. You also get a colorful ARRMA BOOST decal sheet. Go from bashing to blasting with amplified ARRMA performance by adding the ARRMA Wide Arm BOOST Box option package to your ARRMA GRANITE or VORTEKS vehicle, as you continue on your journey toward becoming the best RC driver you can be. Features: Take your ARRMA GRANITE or VORTEKS to the next level! Wider arms improve vehicle stability Assembly video shows easy, step-by-step installation Package also includes ARRMA BOOST decals Upgrade and save money compared to buying a new vehicle :   The Wide Arm BOOST Box can be used to upgrade the following ARRMA 4X2 BOOST basher vehicles