royal pain in my ass. Passenger side isnt too bad, the two bolts on the top of the driver side are easy too, but the two nuts on the bottom of the driver side... fuck those right in the ear. Your best bet is to soak the hell out of them in penetrating oil and somehow get a 3" long 13mm wrench in there, we ended up cutting one in half to get the right length. Lucky for Lewis before he got the car someone rebuilt his turbos, so there was literally NO rust on the two nuts or the studs. I would have been quite upset if i wasnt able to finger them off after 2-3 turns with the wrench.