i got a apexi n1 catback for my gsr. its for a 2dr and mine is a 4dr but it bolts up. only problem is that its hitting on the rear axle and making a annoying *** noise. also its short under the rear bumper and you can hardly see it so i wanted to move it back anways since its melting the underside of my bumper. what do you guys think would be the best way to fix this fittiment issue? im gonna take it to a muffler shop tomorrow but i really dont wanna hack my exhuast all up if i dont have to. anyone else have a 2dr exhuast on a 4dr? thanks guys