At Superchips, we don't just get it, we live it. The Flashpaq for your Jeep (part no. 3876) is designed for your 2015-2018 JK Wrangler 4x4 and packed with off-road specific features exclusive to Superchips. Flashpaq for Jeep is the number one tuning solution for Jeeps. Our tunes include multiple street- and trail-proven performance levels developed on the streets of Florida all the way out to legendary trails of Moab, Utah; make sure you give our Crawl tune a try! This various altitude testing guarantees optimal performance, regardless of geographic location. You'll find lots of pretenders out there making big claims and false promises. Adjust your speedometer for aftermarket tires or gears, read and clear codes, enjoy our CRAWL tune and more. We pioneered Jeep tuning in 2009 and you can rest assured we're keeping the pretenders in our rear view and providing you with Jeep tuning built to contend for the long haul! ***This product requires an PCM swap in order to tune your Jeep*** PCM Swap Options: Option 1: Cross-ship PCM swap (subject to availability of PCMs) After you receive your 3876 Flashpaq, get your vehicle VIN and your product in hand and go towww.superchips.com/PCM-SHIP. Once you proceed, you will need to set up a PCM shipment and the included pre-authorization to secure that shipment. This process is all online and very simple. Option 2: Send in your factory PCM to be unlocked