Everything You Need to Know About Restrictor Plates in Forza Horizon 6Filling in your journal in Forza Horizon 6 is an excellent way to track your progress through the game and to make sure you’re seeing everything that the arcade racer has to offer. The Discover Japan section is specifically designed to have you interacting with the world and its mechanics as you play; however, it’s not always clear what you need to do to obtain all the available stickers. One upgrade sticker that can be a bit challenging to figure out is the Restrictor Plate modification. If you’ve tried to earn this sticker, you may have been perplexed by your inability to find a plate to equip it with. If so, don’t worry; it’s an easy task once you know what to do. The Rundown On Restrictor Plates In Forza Horizon 6 Restrictor plates are devices designed to limit the performance of a vehicle, thus the name, by cutting down on the air intake to an engine, reducing its capability. This may seem counterproductive, and it is if your goal is simply to make a vehicle as fast and powerful as possible. Instead, the primary purpose of a restrictor plate is safety, preventing a vehicle from reaching dangerous top speeds. The most common place you see restrictor plates utilized in the real world is in racing. This can include the lower levels of the sport to regulate the speeds of karts or cars driven by amateur drivers, but it also exists at the upper levels of the sport, with NASCAR utilizing it as a safety measure. Depending on the cars you have been trying to upgrade, you may already be seeing why a restrictor plate has been evading you so far. What Cars To Install A Restrictor Plate In Forza Horizon 6 True to its real-world use, the restrictor plate is not an upgrade available to all cars by default. Instead, you are most likely to find success with this sticker either on a dedicated racing car or by installing a racing engine in a vehicle with an appropriate upgrade. Some of the best options to install a restrictor plate and earn your sticker are: 1985 Mazda RX-7 with the 2.6L 4-rotor engine upgrade 1990 Mitsubishi #269 1991 Mazda #55 Mazda 787B 1998 Nissan #23 Pennzoil NISMO Skyline GT-R 2008 Mazda Furai If you don’t have any of these vehicles, you can still look to the most common types of cars that have restrictor plates. This is primarily cars that are (Grand Touring) GT racers, or Formula Drift (FD) racers. These cars compete on circuits that use restrictor plates for safety, making restrictor plates an available upgrade on most cars in these classes.