Intercooler install

[Mahmud orhan]

Hi guys just curiosity, if I install a new aftermarket intercooler into my r32 rb25det would I need a tune? Thanks in advance

[GTSBoy]

Won't need a tune. If the cooler is much larger than the old one, there may well be benefits from touching up the tune because high boost temperatures will be lower and you could conceivably use more timing, and the boost might also jump up a pound or two if you had a lot of pressure drop across the old core. But it will keep going just fine without a tune.