I've been searching and found one or two things that talk about the blue spring upgrade, but I couldn't find anything with pictures. Can anyone point me in the direction of a post or other site that has pictures of the swap? From what I've read, it's not that hard, but I would do a lot better with pics.
Remove the air cleaner housing and inter cooler pipe and pull the radiator hose out of the way. Remove the fuel filter and use a turkey baster to get fuel out. If your replacing cover as well as the spring remove the fuel line. Take the four screws out making sure to hold the cover so the spring does not push it out. Remove the fuel line fitting from the old cover and put it on the new cover. Utilize the new parts and reverse the order to install.