No way on the rear glass. The curve of the lower section of the rear door cuts into the path the glass takes down. In the old days (my days) all cars had rear windows that went all the way down, even coupes.
A resonator is a muffler thats in the center underside of your car. It's designed to keep the exhaust system from resonating, or humming. At certain loads and frequencies the system can hum or resonate. It can be quite loud.
I had my resonator removed and it droned like mad. Here's the story.
I had a sport muffler put on and it sounded okay. Later I bought another sport muffler and decided to try duals (a Y-Pipe, not true duals). At that time I had the resonator removed and the car sounded awesome at idle, nice reving sounds too. But, under a load, or going uphill the entire exhaust pipe(s) would hum and drone. It was quite loud
It really depends on whether you don't mind it. I put up with it for awhile, but eventually put a sport resonator back on from magnaflow. Now it sounds a little louder than stock, but no drone. Compromise.
