ARRMA Front & Rear Metal Diff BOOST BOX ARA210007 | 4S Power Upgrade

Elevate your ARRMA bash sessions with the Front & Rear Metal Diff BOOST BOX. Built around sturdy metal gears, this upgrade is designed to handle higher-powered motors while maintaining smooth, controlled power delivery. It’s an option package that aligns with ARRMA’s robust engineering, helping you push your RC basher to new performance levels without sacrificing reliability.

Why choose the Metal Diff BOOST BOX

• Metal gear toughness enhances durability for more demanding power setups
• Ready to install with yokes included for a clean, straightforward fit
• Step-by-step online installation video to guide you through each stage
• Colorful decals sheet adds a custom, factory-ready look
• Part of ARRMA BOOST Box kits that let you progressively raise performance

Designed with real-world use in mind, this diff boost box supports transitions to higher motor power while preserving drive feel and control. The aluminum-like confidence you gain comes from a design focus on toughness and precision rather than sheer speed alone.

How this upgrade fits into your setup

• Ideal for ARRMA 4X2 MEGA BOOST basher models after upgrading to a 3S brushless system
• Can complement other ARRMA BOOST Box options, creating a path toward higher performance tiers
• Helps translate power more reliably to the wheels, reducing bog and gear stress during climbs and bursts

What you’ll experience in practice is a balanced combination of strength and predictability. The upgrade is meant to enhance durability and power handling, giving you more room to explore faster speeds and more aggressive driving styles—while keeping the core driving feel familiar and manageable. It’s a thoughtful step for those who want to experiment with greater capabilities without starting from scratch.

What’s included and how it helps

• Yokes for immediate compatibility and a tidy install
• A sheet of ARRMA decals to customize your model’s look
• Access to an online installation video for a guided, step-by-step process

If you’re growing your ARRMA toolkit, this BOOST BOX acts as a bridge between stock durability and more capable powertrains. It’s about extending your model’s usable range while keeping a clear, actionable upgrade path. Consider it a practical accessory for players who want to explore higher speeds with confidence, not a guarantee of faster results.