Considerable testing and technical evaluation have determined that the stock 951 intercooler has serious restrictions built into its factory design.

ProMAX Motorsport can now supply you with a solution based on the original 951 intercooler that is extensively modified providing a noticeable increase in air flow rate with greater cooling efficiency.

No modifications to the body structure are necessary, the headlight system is retained - as is the Air Conditioning and there is no blockage of the air supplied to the radiator. This is an affordable option available to every 951 owner! The more your car is modified, the more you need a ProMAX Motorsport intercooler.

The modifications performed in the Stage I upgrade corrects major restrictions in the factory unit resulting in an 18% (205CFM to 248CFM @ 28" of water column) increase in the flow rate resulting in quicker spool up of the turbocharger and better throttle response. This is accomplished by replacing the tank on the inlet (left) side of the intercoolers shown (click on photo). 75% of the gain from modifying the stock intercooler comes from the Stage 1 upgrade! We recommend our Stage I Intercooler for use on stock cars to ones with moderate modifications. Stage 1 modifications improve the dispersion of the air through the cooling tubes resulting in more efficient cooling of intake charge air by a 20 degrees reduction in inlet temperature. Cooler intake air equals additional HP. Reduced restriction mean more air/fuel to the cylinders equalling additional HP.

Both intercoolers will supply a wider power band and a reduction in Horse Power drop off at higher RPM's where you need the additional flow.

The ProMAX Motorsport intercoolers require only minor modifications to your car. You will be required to remove one factory-mounting tab, which can be done quickly and easily. Everything else remains completely standard on your 951. Other viable intercooler options available for the 951, require you to heavily modify your front unibody structure. Modifications more reserved for dedicated track cars. This is not the case with these units. Installs easily in under two hours and can be done by anyone with basic mechanical knowledge and a few tools.