Install the Active Autowerke BMW F-Chassis N20/N26/N55 intercooler for nearly factory-like fitment and experience the meaning of sustainable BMW power in a compact package. The factory intercooler may be adequate for the stock power, but with raised boost comes more heat to dissipate. To overcome this...a larger intercooler is the answer.
On the dyno we've seen temperature differences up to 42* F compared to the stock intercooler after repeated runs. Our stepped intercooler helps to maintain power over extended periods of time and will also yield a gain of 15-20whp on stock cars, with modified vehicles seeing 25+whp gains.
The testing in our graph above is raw data from our dyno that was logging intake temperatures on a bone stock car versus the same car minutes later with our intercooler installed. The temperature gain on the stock car is 55 degrees versus only 22 degrees with our intercooler installed! Notice that at higher RPM the oem intercooler lacks the capability to keep the charge cool as the temperature ramps up exponentially with RPM. So even with a starting IAT higher than that of the stock car, our intercooler managed to keep temperatures cooler and more consistent all the way to redline.
Stock starting temperature: 89*
AA Intercooler starting temperature: 96*
Stock max temperature: 144*
AA Intercooler max temperature: 118*
Stock delta: 55*
AA Intercooler delta: 22*