Lohen - Your MINI Tuning Specialist

If you're looking to add up to 21 BHP to your Gen1 MINI for minimal cost, look no further. Alta has designed a two-piece supercharger pulley for the R53 MINI Cooper S variants which replaces the stock sized pulley and can yield considerable performance gains for a relatively low price. We strongly recommend the swap to a reduced supercharger pulley to all our S and JCW customers and find it gives the 'biggest bang for your buck' to those seeking extra horses on the dyno! 

The Alta Version 2 pulley features a stainless steel supercharger shaft coupler with a site for installation. The extremely light aluminium body decreases rotational mass giving increased throttle response. This will give you a 3 - 5 PSI increase in boost and a 15 - 17 BHP gain in power depending on pulley size. Another addition is the over sized belt retainers and grooved teeth, which help to increase belt grip. 

17% Pulley - Will give you around an 18 - 21 increase in BHP. This size pulley will produce more low-down boost as the supercharger spins faster from a lower RPM. 

PLEASE NOTE: It is advisable to pair a 17% Pulley with a GRS upgraded intercooler, as heat can become an issue if used at high RPM for a long period. 

Overview:

>> Easy to fit 2 piece design 
>> 18-21 BHP gains 
>> Ultra light body
>> Oversized belt retainer

Whats in the box:

>> 1x Alta supercharger pulley 
>> 1x Allen key 
>> All fitting hardware

Kit fits:

>> All Gen 1 BMW MINI Cooper S / JCW / GP Models 
>> All Gen 1 BMW MINI Cooper S / JCW Convertible Models 

Economy Courier: FREE

Refunds are available within 30 days after delivery for products that are unused and are in original packaging. Special order goods are non-refundable. Products that are damaged in transit to or from the customer can be refunded up to 14 days after the product has been delivered. Products returned to us in imperfect, non-resalable condition will not qualify for refund. Products that are faulty due to manufacturing process are refundable under the manufacturers' warranty for a limited time specified in the manufacturer's terms and conditions. These do not apply if the product has been fitted incorrectly or mis-used, motorsport use could further reduce the manufacturer's warranty. If an order is cancelled or refunded the buyer is responsible for the return of the goods to such address as directed by the supplier and is at the consumer's sole expense. This does not affect your statutory rights.