High on Boost Cup Holder Inserts

Important: these inserts only work inside our cup holder mod.
They are designed to sit in the High on Boost cup holder mod and will not fit the car's original cup holders on their own, where they will be too small and rattle. Need the full mod? Shop our cup holder mods.

High on Boost Cup Holder Inserts

Our cup holder mods are great, but what if you want a tighter fit? Our adjustable insert shrinks your holder down to perfectly fit slimmer cans. Choose the Size M insert for standard slim energy drinks (330ml Neutonic, 355ml Red Bull), or go smaller with our Size S insert to perfectly grip slim cans (250ml Red Bull). No more rattling, just a secure, custom fit for your drink of choice.

🔒 Secure Fitment – Sits snug and sturdy, yet easy to remove when needed.
🛡️ Lifetime Warranty - Risk-free and complete peace of mind.
☑️ High Safety Standard - EU & FDA food contact certified.
🇬🇧 Designed & Made in the UK – Built for VW and BMW owners who actually use their cars.

📦 What’s Included

• High on Boost Cup Holder Inserts

🛡️ Warranty & Guarantee

• Lifetime Warranty: Complete peace of mind.
• No-Questions-Asked Replacements: If it breaks, we replace it. It’s that simple.
• Built for Extremes: Manufactured from high-toughness materials designed to withstand extreme cabin heat and harsh climates without warping.
• Safety Standards: REACH, ROHS, EN71-3, EU & FDA food contact certified 

✅ Compatibility

• Size S Insert will fit slimmest 250ml cans (eg. Red Bull)
• Size M Insert will fit slim 330ml and 355ml cans (eg. Red Bull, Neutonic)
• HOB Cup Holder Mod (without inserts) will fit the wider 330ml/500ml cans & bottles

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