Manthey Racing Extended Water Tank Porsche 991 GT2 RS
Product Description
The Manthey Racing Extended Water Tank is designed specifically for the Porsche 991 GT2 RS, increasing the capacity of the factory charge air cooling water system by approximately 9 litres. This additional volume helps extend the system’s cooling capability during demanding road and track use, allowing the car to maintain more consistent charge air temperature control under sustained load.
On high-performance turbocharged Porsche applications, charge air temperature management is critical to maintaining consistent performance. During intense track sessions, the factory cooling water capacity can become a limiting factor, often requiring more frequent top-ups between runs. By increasing the available water volume, the Manthey Racing extended tank helps drivers spend longer on track and less time managing cooling interruptions in the pits.
The tank is engineered to integrate seamlessly with the factory Porsche charge air cooling system, increasing capacity while retaining an OEM-style installation approach. This makes it a practical and focused upgrade for drivers who regularly use their 991 GT2 RS in high-load environments.
Developed by Manthey Racing, Porsche performance and motorsport specialists, this extended water tank is ideal for owners seeking improved cooling efficiency, greater consistency and uninterrupted performance during fast road driving or track use.
Further information below.
Key Features
Vehicle Compatibility
What's Included
FAQs
Shipping & Delivery
Dispatch Times
Most stocked items dispatch within 1–2 business days. Some products may have longer lead times due to special ordering, availability, or build times. If your order contains multiple items, they may be shipped together once all items are ready unless otherwise agreed.
UK & International Shipping
We ship worldwide. Transit times vary depending on destination and courier. Tracking details are provided once your order is dispatched.
Import Duties & International Orders
International customers are responsible for all import duties, taxes, and clearance fees. These are not included in our prices and are outside of our control. Refusal or non-payment of import charges may result in return shipping, handling fees, and customs charges being deducted from any refund.
Damaged Shipments
If your parcel arrives visibly damaged, please refuse delivery or note the damage with the courier. If damage is discovered after opening, contact us immediately with photos. Do not install damaged items, as installation voids courier claims and return eligibility.
Returns
Returns must be authorised before sending anything back. Returns must be requested within 14 days of delivery and returned within 14 days of approval, in unused/uninstalled condition and in original packaging. Some items, including special-order, built-to-order, used, installed, or modified parts, are non-returnable.
Full details are available in our Shipping Policy and Returns & Refund Policy.
Warranty & Disclaimer
Warranty
Most products include a manufacturer’s warranty covering manufacturing defects only. Warranties do not cover wear and tear, improper installation, misuse or neglect, track use, competition or racing environments, labour costs, vehicle damage, downtime, or consequential loss. Warranty outcomes are determined by the manufacturer, not Clubsport Garage. Items must be returned for inspection at the customer’s cost unless agreed otherwise.
Fitment & Installation
Many products are aftermarket components and may require professional installation or minor adjustment. Perfect OEM-level fitment cannot be guaranteed. Professional installation by an experienced workshop is strongly recommended. Installed or used items cannot be returned.
Motorsport Use Disclaimer
Some products are intended for off-road, track, or motorsport use only and may not be legal for road use, for example non-TÜV/DOT-approved parts. It is the customer’s responsibility to ensure compliance with local laws, insurance requirements, and vehicle regulations. By purchasing and installing aftermarket parts, you accept all responsibility for ensuring compatibility, legal compliance, proper installation, and any resulting wear, damage, or failure.
Product Images & Descriptions
Product photos are illustrative and may differ slightly from the item supplied. If specific details are important, please contact us before purchasing.
Full details are available in our Terms of Service and related policy pages.
