Intercooler
 

Hi guys I noticed today that the fins on my intercooler were flattened so I painstakingly moved them back to the original pattern,it seems to me that after a spirited run they tend to fold over.The questions I,m asking are

1.Why does it happen.

2How can I prevent it

3 Is it doing any harm if I leave them as they are?

Cheers for any help.:Suspiciou

Road crud, grit and stuff.
Any restriction in flow will have an effect but putting someting in the way to stop it happening will have the same effect.