HKS R TYPE Intercooler Kit for GRB Subaru Impreza WRX STi

HKS R TYPE Intercooler Kit for GRB Subaru Impreza WRX STi

Get the Turbine’s Real Power and Increase Engine Torque!

• All HKS Intercoolers improve both the efficiency and power of any turbocharged application by rapidly reducing inherent heat levels of the compressed intake air charge before entering the engine. By utilizing a special tube and fin design, the intercooler acts as a large heat exchanger that dissipates the heat generated by the compression of the intake charge without creating reductions in boost pressure or response.
• HKS intercooler is using a larger size intercooler to maintain cooling performance. The stock intercooler piping layout has a sharp bend so the intake air does not flow smoothly and causes the boost pressure loss.
• HKS intercooler integrates the inlet side tank of the intercooler and pipe to realize a smooth air flow and reduce air intake loss.

Cooling Efficiency Improvement = Torque Increase

The cooling efficiency of an intercooler is affected by many factors including the frontal surface area of the core, cooling fin design and air flow through and over the core. HKS has increased the size of the core over stock to increase the air flow over the core.

New type cooling fin now offers improved heat radiation. Core end tanks have been designed to flow the compressed air evenly across the whole intercooler core. All these factors will maximize reduction of intake air temperature which increases air density. Increasing the range of fueling and ignition setting making it possible to deliver more power and torque.

Lower Pressure Loss = Better Response

Along with cooling efficiency, pressure loss reduction is one of the most important aspects of intercooler performance. If the pressure drop is significantly high, throttle response and the torque is reduced.

However, reducing the pressure loss and improving the cooling efficiency are contradictory, and the lower the pressure loss, the worse the cooling efficiency becomes. A large cause of pressure drop is the cross sectional area of the tubes in which the air flows and inner fin layout and shape. HKS has emphasized cooling efficiency yet achieved a low resistance design with thin fins.

Tube design has been also considered in many possibilities and increasing the cross sectional area. With these measures in place, high levels of cooling efficiency have been achieved without sacrificing pressure drop.

R TYPE Intercooler

R TYPE is designed for circuit use. Ideal to use with a stock replacement type turbine to wastegate type large size turbine. This intercooler derives better turbine performance regardless the engine rpm during driving on a straight track and acceleration after cornering.

The weight is approximately 25% lighter than a conventional product (in-house comparison).

What’s Included

Core Assy R Type Core

• Side Tank Polished

Inlet Pipe

• 3 pcs (aluminum polished)

Outlet Pipe

• 3 pcs (aluminum polished)

Type of Hose

• Silicon Hose

Notes

• You need modify the bumper and size of battery to B19L size for installation.
• Can’t use with the stock recirculation valve. SQV is installable. (the flange is welded into SQV pipe)
• Need separate Racing Suction Reloaded.
• You don’t need ECU setting for exhaust system tuning, but if you do the performance will get better. With already boost-up vehicles, we recommend the setting with F-CON iS or V Pro for better performance.
• Approximate installation time is 5 to 6 hours
• Does not fit to stock bumper with fog lamp option.
• Racing Suction Intake required for installation.

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