difficulty

nuts n bolts my friend. MGW includes very detailed instructions, its rather simple. just take your time and dont use 1/4" drive sockets. use at least 3/8" drive. you'll love it.

if you miss 3rd gear with the MGW you either cant drive or you're running from the cops
 
Its a very simple install. The hardest part is getting off the old shifter. I ended up drop kicking it because it was held on so tight with RTV - though thats probably not the recommended way for removing it :nice: Then you just put in the new shifter, bolt it up, and put on the boots. <1 hour of work
 
forget the B&M. they're not even mentioned in the top 3 when people talk about shifters for the T-45/3650. you have 3 choices: MGW, Tri-Ax, Pro 5.0. UPR Blue Thunder is another, but its similar to the tri-ax, but cheaper.

I say stick with the MGW, you wont regret it.
 
I got a MGW, i love it, it's super easy to install, only thing that takes time is removing the old shifter, and scraping the old gasket off with a razor. Just allow some time to get the old shifter off, work here gently ;) The shifter is amazing, if your in 2nd and push up, you have to hit 3rd :)