Pulsar is the most innovative performance in-line tuner to ever hit the market. The Pulsar inline module has made waves among truck owners. The industry-exclusive technology, now available via Pulsar, has totally changed the game when it comes to adding performance and keeping the ECU on the truck. No mail-in unlocks, no cross-shipment, or hassle. Pulsar supplies instant power, on the fly, with no flash tuning.