The GRS Intercooler features a large surface area and core thickness, which increases performance over a standard MINI intercooler, after upgrading to a reduced supercharger pulley an efficient intercooler becomes even more important as airflow is increased which means more air has to be cooled. The GRS intercooler is a quality piece of engineering and has been tested to 100 psi, a precision cut fiberglass and carbon fiber diffuser is included to improve airflow over the intercooler, which can only be found on the GRS.

The end tanks have been specially designed to insure a ‘ram air effect’ is achieved through the core to achieve maximum cooling. ‘Boxed end tanks’ with sharp edges do not work as well as ‘Tapered end tanks’ as the charged air can become very lazy. GRS have carefully selected the right ‘tube’ & ‘vain pitch’ to ensure the core is right for this type of top mounted intercooler. The standard Intercooler on the Mini Cooper S will only keep air charge temperatures (ACT’s) down to a satisfactory level with boost levels of no more than around 8-9psi. Once the boost pressures have been increased the ACT’s associated with the higher boost levels can be excessive for a standard intercooler. As ACT's rise, power is lost due to the air containing less oxygen. The GRS Intercooler has been designed to keep the ACT's to a satisfactory level. GRS say when the intercooler was tested on a rolling road it showed no more than 38 degrees at all times, at 13-14psi, thus ensuring that maximum power is always available even in hot weather.

GRS Motorsport Version

We also offer the Motorsport Version of the GRS intercooler (Pictured in photo 4) for those looking to extract as much from their engines as possible. The ‘Motorsport’ version has a diverter welded between the end tanks, this helps spread the air from the bonnet scoop evenly over the core, this design has shown a noticeable improvement in the cooling capabilities over the standard GRS Intercooler. Testing showed a 5bhp increase over the normal GRS intercooler, a GRS customer in Italy using a rolling road carried out tests. Please select from the drop down below if you would like the Motorsport Version.

The GRS intercooler is now available powder coated in numerous colours, if you would like a colour that is not listed then please contact us or leave an additional comment on your order. Please note that powder coated intercoolers are a special order item and can take up to 3 or 4 weeks to come in to stock.