Raise up and support the car and start by removing the stock muffler. You do this by removing the two 12mm bolts right in front of the suspension. Save all rubber hangers.
Tip: If you only have jack stands, raise up the right side of the car. This will give you the greatest level of access to the entire exhaust system.
Remove the remained of the exhaust by removing the 14mm bolts at the cat or test pipe. These bolts are on pretty tight, so be prepared. Save all rubber hangers.
Install the resonator onto the rubber hangers. You want to install this first to prevent the middle pipe from bending the cat or test pipe.
Install the middle pipe to the resonator and to the cat or test pipe using the supplied gaskets and hardware. Do not tighten down the bolts, leave them a little lose to allow for future adjustment.