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Real experience
We test before we recommend.
PRODUCT DESCRIPTION
16% smaller pulley, designed to increase compressor pressure by up to 0.4 bar and power by up to 20 HP, with a significant increase in torque.
Combined with ECU remapping, it allows for an increase of up to 40 HP compared to the stock setup. Boost pressure with this pulley is approximately 1-1.2 bar. Unlike other pressure increase methods, the RTMG pulley for Mini Cooper S is designed not to exceed the limits of the stock compressor, thus ensuring maximum reliability. It does not cause damage or additional wear to the compressor or other components such as the water pump, alternator, bearings, etc.
Made from 100% aluminum alloy using modern CNC machines and ISO certified. Our design allows the pulley to be installed without damaging the compressor shaft thanks to its double clamping cone. No special knowledge is required for installation, and it can be mounted without needing to remove the compressor from the engine.
Compatible with all Mini Cooper S R53.
* To prevent belt slippage, a shorter belt must be used.










WHY THETUNERLAB
We have spent years building cars, racing, and testing the exact same parts that we sell.
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We test before we recommend.
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We help you choose the right part.
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Only trusted manufacturers.
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Before and after the purchase.
+10 years
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available products
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Each product indicates compatible models in the product description. If you have any questions, you can contact us and we will help you choose your best option.
-If the product is in stock, the usual delivery time is 2 to 5 working days.
-If the product is out of stock, the delivery time is 7 to 15 working days.
All our products come with the manufacturer's official warranty and comply with current regulations.
Yes. We ship orders to Spain and most European countries using specialized transport agencies.
You can contact our team via WhatsApp, email, or our website's contact form.
Shipping costs depend on the type of product, its weight, dimensions, and the destination country. In most cases, the amount is calculated automatically during the checkout process before the order is finalized.
For some products, especially large items or those with special characteristics, shipping costs may require a manual review. If the amount shown does not match the actual shipping cost, we will contact you before processing the order to inform you of the final cost and request your confirmation before proceeding. We will never charge any additional fees without your authorization.