Searched and found a few people with different ways but I have found that a brass wire brush works great. I'm using an old BBQ brush that is brass. Using it in a up and down motion so not to bend the fins. The brass seems soft enough as not to scratch the tubes on the a/c rad.
???Now if I can find an easy way to straighten the fins out that have been hit by stones???

 

Wow u must have been goin REALLY fast for them to blow right past your intercooler.. hehe

 

Intercooler is between the AC and the engine radiator right?? 140 mph may have put a few past it to the intercooler.

 

Right.

It goes A/C Condensor, Heat Exchanger/Intercooler, Radiator.

 

are yall serious??

 

You can go to a car wash and power wash it and the bugs should come out.

 

I've tried powerwashing it but it dosen't seem to get it that clean and pushes them further into the fins. Brushing it takes everything out and it only takes a minute.