Boy do I ever.
PIPER PERFORMANCE. He sponsors my neighbor's kid on his dirt bike.
Cliff and Diane Piper own & run it. Cliff is the real freaking deal, too. They both raced bikes. He has his own dyno, and for ~$300 he'll squeeze out every last bit of power from your bike. And his shop is spotless, which gives me real peace-of-mind.
They're located in North Richland Hills, TX, but believe me it is worth the drive.
Best of all, Cliff is a dang good guy. You can call him up and he'll shoot the bull with you. You can stop by his shop and watch what he's doing. No biggie. He's very straight-forward about the cost of what he's doing. He's not the cheapest (his labor rate is pretty standard), but he's the best I've ever met.
Give him a call: 817-656-7400
He'll treat you right. You'll love dealing with him.