I didnt think it was as much of a big deal as some say. Only things i took off were the valve covers. I then, used a 1/4" breaker and a cheap 10mm socket i bought specifically to grind down to about half of its original length to allow the breaker with it on it to fit between the head and the firewall. After that it was a combination of this tool and the "finger" wrench to get the bolts started that did it but I have really long skinny fingers (lol) so that might have helped. I accessed all the bolts from the passenger side of the car without taking off any of the other EGR equipment except the cooler. Just another option for you.