Using your new Remark axle back exhaust is easy. First, make sure your car is parked on a flat and stable surface. The exhaust comes with gaskets and bolts, so you can directly bolt it onto the OEM or Remark mid Y - pipe. Just follow the standard installation steps and you'll have it on in no time. When it comes to driving, enjoy the enhanced power, torque, and the cool Subie sound. As for maintenance, it's made of high - quality 304 stainless steel, which is pretty durable. But it's a good idea to clean it regularly with a mild soap and water solution. Avoid using abrasive cleaners as they can scratch the surface. Also, check the bolts and gaskets from time to time to make sure they're tight and in good condition. If you're going to drive in harsh weather or on rough roads, be a bit more cautious and inspect the exhaust more frequently.