many dyno shops have these, some of the best tuners in the country have the ecu flasher
Johnny Cheese
Ryan Schnitz of Schnitz Racing
Walter Sprout
Sebastian Domingo of NLR Racing
Richard at RCC Turbos
Lee Shierts at Lees Performance
Frank at Powerhouse Cycles
Jay Stedman at Stedman Motorsports
Cycle Connection
Supreme Cyclez
Quicktime Motorsports
SAE Performance
Spaz Racing
Third Coast Speed
Wilburn Motorsports
XSV Sports
Henderson's V-Twin
Port-Tech Heads
The list goes on for a ways.
The neat thing about ecu flashing, say you are a few buddies all have an 02-07 bike, not everyone needs a programming box, it doesn't stay on the bike, buy 1 box, with extra bike harnesses and you can all share the programming box.
You can also build your own to save money, what I offer has been designed onto a circuit board for more robust connection, has the convenience LED's, in a case with professional wiring harness, and is tested before it ships on my ECU here to verify it all works