Exotek Arrma Grom/Losi NASCAR Aluminum Differential Outdrive Cups (2)

Outdrive Cups Overview:

Upgrade your Arrma Grom or Losi NASCAR with Exotek’s Aluminum Differential Outdrive Cups!

About the Outdrive Cups

Durability & Performance

The Exotek Arrma Grom and Losi NASCAR Aluminum Differential Outdrive Cups are crafted from lightweight, rigid 7075 aluminum for ultimate durability and performance. CNC-machined for precise fitment, these hard anodized cups enhance reliability by eliminating flex and improving overall performance. Corrosion-resistant and designed for hassle-free installation, they offer a longer-lasting, high-performance upgrade over stock plastic cups, making them perfect for racing and tough conditions.

Features:

• Made from lightweight, rigid 7075 aluminum
• CNC-machined for precise fitment
• Hard anodized for extra durability
• Eliminates flex for better performance
• Corrosion-resistant finish for long-lasting use
• Easy, hassle-free installation
• Designed for the Arrma Grom and Losi NASCAR platforms
• Offers longer wear than stock plastic cups

Includes:

• (2) Aluminum Differential Outdrive Cups

This product was added to our catalog on March 12, 2025

• Arrma Granite Grom
• Arrma Mojave Grom
• Arrma Typhon Grom
• Losi NASCAR

John Eckert Thursday, Sep 11 2025 (2 weeks ago) Exotek Arrma Grom/Losi NASCAR Aluminum Differential Outdrive Cups (2) They won’t fit the Arrma V2 oiled filled diffs . These cups are longer and Only fit the original diffs . Don’t see how I can use them in stock racing ?Built a car just for play I was gonna use it for . Wish they would say that before purchase . Otherwise it’s a nice but overpriced . The Exotek CVDs will work with either diffs according to the email I received from Exotek . I have those on order from Amain . View all reviews