There is no cutting or drilling! The only modification you must do is to the upper brackets. They require two slight bends. Very simple bolt in. The hardest part is dealing with the stock hose clamps.
Let us know if you can feel a difference in performance with the new unit.
I was thinking of installing an aftermarket heat exchanger also, but not sure if I need it with my mods. Mostly those with pulley swaps doing it?
I've had my SFHQ heat exchanger on for a few months. I believe it's the same one as the LFP since the directions in the box were for the LFP heat exchanger. Anyway, I have yet to feel any discernable difference. I know hp/tq will not increase with it but at least on back to back dyno runs I didn't lose much power which is good. Before my new HE, I lost 10rwhp on back to back runs while I lost at most 3rwhp during my last dyno-tune with the new HE. Not very scientific since the runs were on different days but that's all I've got. My first time at the track today also demonstrated consistent back to back to back runs without performance (read: mph) falling off in 80 degree weather so maybe it had something to do with the larger more effecient heat exchanger.