Remember, e30 doesn't run any hotter than any other tune at all, and unless you are going to make repeated multiple consecutive pulls in the summer heat, you aren't going to heat soak with the stock intercooler at all. I ran over a year that way, it literally took it being in 100 degree heatt and only after the 3rd full 3rd-4th pull did the charge temps shoot up to over 140 and then all it does is start cutting power. All you have to do is drive for a minute to cool off the IC between pulls and charge temps recover pretty quickly... hell, I made multiple passes at the drags with a very short line with just a couple of minutes in between, I had to worry FAR more about my coolant temps and had to run with my heater on full blast, hehe... But honestly the IC has helped with coolant tempss too by keeping everything running cooler, so still recommended but can absolutely enjoy for now until the heat returns.