Power Commander V

[Scotrod]

Bazzaz has one on the market now. Relatively involved install and adds about 3 HP and 3 ft lbs TQ,,,

Hopefully PC can do better. If not,, eh,,, I'll probably pass.

[4DI2D]

Dyno tuning with a PC will allow setting a flat line air/fuel ratio from idle to red line.
This was mandatory for my modified Harley. We might get a tweak in fuel mileage but it costs 300+ for the PC and about 200 more for dyno time IF you can find someone who actually knows his way around a dyno.