The IC fan really only helps fight the heat soak that occurs while the car is stationary. It doesn't help the cooling once the car is in motion. If you want to go front mount, u can't go too big because there's not much room behind the front bar unless u do some serious cutting. Most GT4 owners purchase a GRP A bumper to accomodate a front mount. If you on a budget, I wouldnt bother with going front mount and stick with the IC fan which shouldn't cost you too much. When you have some extra funds, see what you can fit behind ur standard front bar or buy a GRP A one and install a nice big front mount.