Unless you just putt around, holding back traffic, you will go GA GA with the PC. First off, it removes the throttle slack, which is a good thing for control. Then you have umpteen times two sensitivity settings -- anywhere for "how many more cars can I hold back" to "whiplash!"
The PC simply flat out makes a Spyder way more fun. It doesn't increase the HP or torque, but it sure feels like it does.
I was thinking about getting a ECU reflash, but the PC makes that absolutely unnecessary. Besides, the PC settings are flexible - you can even do them on the fly. With a reflash, you get what you got until you go through the motions to change it.
Oh...and the install is super easy. Slingmods has a video of it.
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