Using this Boomba short shift transmission plate is easy. First, locate the existing shift plate on the passenger side of your 2015+ Subaru WRX transmission. Remove it and then install the new plate using the included mounting hardware. Make sure all the bolts are tightened properly. When it comes to shifting, you'll notice a significant improvement right away. If you pair it with the Boomba short throw shifter lever, the reduction in shifter throws will be even more impressive. As for maintenance, keep an eye on the plate and the mounting hardware. Check for any signs of wear or looseness regularly. Since it's zinc - plated, it has good durability, but if you notice any scratches on the plating, it's a good idea to clean and protect that area to prevent rust. Overall, this product is built to last, but a little care will ensure it serves you well for a long time.