I believe Carpenter tunes with real-time Tuneboy. Even if he has tuned for that exhaust with triple K&N's, and would supply you with the tune, you'd need to buy the Tuneboy license to load it. You could drive to NJ to have Carpenter dyno tune it. On the other hand, if there is a good HD tuner locally who uses Power Commander, jump on it. I have Jardines and K&N's. I got a PCIII and had it dyno tuned to 152hp/162ft lbs SAE at WOT. It's also super smooth at lower throttle where I do most of my riding. Before doing the PCIII, put a base map in with TuneECU with the secondaries open 100% and the highest gear timing table copied into the tables for the lower gears.