When I spoke with Don I told him I wanted the latest map they had for a slip on exhaust (Two Brothers) and a K&N filter. I did'nt have him mess with the rev limit. I sent it om a Monday and had it back here in NC on Friday. I took her for a 10 mile spin yesterday and gang if your on the fence about getting this mod, jump off and get it done. The off idle acceleration is so smooth, gone is that little choppiness and sluggishness at low rpm's. Driving in traffic (city) I can cruise in 2nd at a low range and just tickle the throttle to pass, no more shifting in the city, the engine now pulls so effortlessly you might not know that your doing 55 in a 35..... in a low gear. And on the highway silky smooth into the triple digit (safely). This is easily the best bang for buck and you don't even get your hands dirty.
Now this morning on my way to work it was 34 degress riding at a GPS corrected 80 mph, tach was under 3900 rpms I was pulling 33-34 mpg which is about 2-3 mpg more than what I had before the reflash.
I slowed down to a steady GPS corrected 75 mph, tach was barely on 3600 rpm and I was pulling down 37-39 mpg. which again is 2-3 mpg more that what I had.
Well done Done Guhl :great:
http://guhlmotors.com/Cheers
Ron