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I have not put mine on the track, We did dyno on a mustang dyno in Florida heat 305/480 with JR tune and ABC deletes. I do not really care much about 1/4 mile, I am more concerned with real world performance, so here are some real numbers
240 miles averaging 90mph (as slow as 50 as fast as 140) on 8 gallons to average 30 mpg.
50 mpg at 60 mph.
and for the speed demons 60-120mph in 9 seconds, about as fast a 991 GT3 and about a second slower than a Z06.
I have put about 20,000 miles on the JR and it has been flawless. There is a little flat spot from 117-121 but thats the worst I can say about it.
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