The TRS PowerFlow Valve is the real deal! We ran mine for the first time today and noticed a big reduction in lag compared to stock. This was confirmed by two other riders who have ridden stock Boost sleds. The thing I liked the most is how fast the engine gets back to boosting when in and out of the throttle. A variation of the 2-stroke expression of , "On the pipe" would be to say that the TRS PowerFlow Valve gets you "On the boost" faster.