Be careful with your off-roading as the radiators are not designed to take very much abuse. The inner mounting stub is known to break easily when guys go off track. The inner stub is also known to break just from constant use. I moved my radiator to inside the frunk for that reason. My boxster is dedicated more to rally cross though. Here's my build thread so you can see what I did.
http://986forum.com/forums/show-tell-gallery/73877-6-months-live-build-thread.html