Using this Remark Boso Edition axle back exhaust is a breeze. First, make sure your car is a 2022 - 2025 Subaru WRX as it won't fit aftermarket exhaust systems. It directly bolts on to the OEM or Remark mid Y - pipe, so you don't need to do any complex modifications. Just follow the included instructions and use the provided gaskets and bolts for installation. As for maintenance, since it's made of high - quality 304 stainless steel, it's pretty durable. But it's a good idea to regularly check the bolts and gaskets to make sure they're tight. Also, keep an eye on the exhaust tips for any signs of damage. If you notice any scratches or dents, you can use a stainless - steel cleaner to keep it looking good. And remember, because of its loud and aggressive sound, it might attract some attention, so enjoy the unique driving experience!