Just got this last summer. Really clean, but the ZA was trashed. Replaced with an E50 I had laying around. Kit has to get installed Update 4/19/2015 - kit installed, mostly tuned. Runs fast, although I have not done a GPS on it yet. Update 4/28/2015 - Tuned a little better, air leaks addressed. I'm getting 47 mph out of it so far