hmm. you have a couple options but both would involve taking your car to an exhaust shop. should be ~100 bucks to install. 1. cut your exhaust off and weld adapters to both your existing pipe and your exhaust so you could bolt it on. or 2. weld that sucker on. regarding the brackets. the exhaust shop will make hangers accordingly to your car. use the rubber bushings, they prevent noise and also lets your exhaust move freely. if you want just a deeper tone, you wont need to remove the resonator. If you want your car a lot louder, take it out.

personally, i'd add the dual tip exhaust but weld new tips on. they look too far apart but should sound fine.