AIRTEC intercooler for the BMW 135i.
 
AIRTEC intercooler was seeing an adverage of 36 degrees with an increase of around 17bhp.

The test shows with a basic Stage 1 remap, you can gain power with just having a AIRTEC intercooler.
 
With having an an AIRTEC intercooler fitted and keeping air temperatures down means a proven increase in power.
 
AIRTEC part no: ATINTBMW2/135