Arrma Metal Differential BOOST Box. Designed to give your Arrma vehicle an easy differential upgrade this BOOST box is a bolt on upgrade for Arrma X2 BOOST, MEGA, or 3S vehicles. The Arrma Metal Differential BOOST Box upgrades your model to 4S metal gear specs, giving it the powertrain durability for bringing out the beast in your Arrma RC basher. The Arrma Metal Diff BOOST Box comes ready to install following the step-by-step guidance in the online assembly video.

Features:

• Metal gear toughness for using more powerful motors
• Ready to install with yokes included
• Easy step-by-step installation video available online
• Sheet of colorful Arrma decals also included

Includes:

• (2) Assembled Metal Gear Differential
• (2) Bevel Gear Yokes
• All Necessary Hardware
• (1) Arrma BOOST Metal Diff Upgrade Product Manual
• (1) Arrma BOOST Decal Sheet