Official Website: If you currently have or are considering purchasing a Harley-Davidson extended warranty plan at the time of purchase on a new bike with the Milwaukee-eight motor, you may reconsider now and into the future if things stay in their current state. If you are planning on adding specific performance upgrades, it may void both the two-year manufacturer's warranty and any 3 or 5-year Harley extended warranty you purchased, commonly referred to as an "extended service plan".  These new strict warranty policies really only pertain to 2017 & newer Harley's with the Milwaukee-Eight motor. Those of us that own earlier models really haven't had to deal with what I'm about to reveal to you. (This is a guide only. Read the actual warranty paperwork for yourself.) SUPPORT US AND SHOP IN THE OFFICIAL LAW ABIDING BIKER STORE 60 Day Service & Warranty Registration (SWR) Let's first talk about the 60-day warranty rule, which is referred to as a "Sales & Warranty Registration" or "SWR". If within the first 60 days of your new Harley purchase you purchase Harley Screamin' Eagle parts and have them installed by a Harley dealership mechanic, all parts and labor will be covered during the two-year manufacturer's warranty and during any extended service plan you purchase. Also, all the parts and labor will be tracked under the vehicle identification number (VIN) and can be tracked for the life of the bike. It's as if the bike came from the factory with the parts. An example would be a Screamin' Eagle stage four install. You can often finance the Screamin' Eagle parts and labor at the time of purchase of your new Harley.  Now, you can still purchase Harley Screamin' Eagle parts after that 60 days and have a dealership mechanic install them and your warranty will remain intact, however, only the 1-year Screamin' Eagle parts warranty will apply and labor will not be covered in the future if there is a related problem.  Note: You can purchase a 3 or 5-year extended service plan, which attaches to the end of the two-year manufacturer's warranty. That means, if you purchased the 3-year extended, you'd be covered for 5 years. Likewise, if you purchased the 5-year extended, you'd be covered for 7 years. Then, as long as you don't exceed 75,000 miles you can renew your extended service plan for an additional 5-years for a total of 12 years risk-free engine work/labor. But, this all comes with a price tag of course. And a reminder that you've been forced to only use overpriced Harley parts.  What Voids Your Harley Warranty? If you or anyone else besides a certified Harley dealership technician installs Harley Screamin' Eagle parts or any other brand performance engine parts on your Harley, any warranty you have is technically voided. We'll talk further about that later. CHECK OUT OUR HUNDREDS OF FREE HELPFUL VIDEOS ON OUR YOUTUBE CHANNEL AND SUBSCRIBE! As an example, and very technically speaking here, if you install simple aftermarket slip-on mufflers and an aftermarket stage-one air intake your two-year Harley manufacturer's warranty and any extended service plan you purchased is voided. Certainly, if a non-Harley certified dealership mechanic or you install a stage four kit of any brand, your Harley warranty will be voided.  Further, if you or anyone else install an aftermarket electronic fuel injection (EFI) tuner, your entire Harley warranty is immediately voided.  How Does Harley Decipher These Things? Some things are going to vary from dealership to dealership on how they choose to handle some of these issues and how they choose to treat their local customers.  But first, what you need to know is that if you take your Harley to any dealership and they need to plug your Harley's engine control module (ECM) into their proprietary Digital Technician II software, it is going to automatically start reading things. If the software determines you have current EFI map/tuning changes in your ECM from an aftermarket non-Harley EFI tuner it will im