Using this DC Sports cold air intake is easy. First, gather all the hardware that comes with the kit. Then, remove the old, restrictive OEM rubber intake pipe from your 2004 - 2008 Acura TSX. Next, install the smooth mandrel - bent aluminum tubing in its place. Attach the high - flow DC Sports performance air filter to the tubing. Make sure all connections are tight. When it comes to maintenance, check the air filter regularly. If it looks dirty, you can clean it according to the filter's cleaning instructions. This will help keep the intake system working well. Also, always ensure that the system is properly installed to avoid any air leaks. And remember, since it's C.A.R.B compliant, it will meet emissions standards in all 50 states, so you don't have to worry about that when using it.