hey guys I got bored wth the standard exhaust on my sedan again! so I relplaced the centre muffler wth a bolt in straight pipes section. but it doesnt sound as loud or as good as it did when I had it on the car about a year ago! mayb the rear muffler has fallen to bits now I had a redback catback system on it a lil while ago but I didnt like it , it seemed to drone at hwy speeds. as my exhaust is atm, its hanging to low in the middle, and the exhaust tip is angled to the right hand side(crappy factory tip) so these need to be fix! so to get this fixed up is gonna cost me a lil bit! I would like my exhaust to b a bit louder, wth a more sportier note I still hve the redback system wth some nice 3" tips, if I replaced the factory rear muffler with this one do u think it will sound any better? or should I just get a new cat back system, from what ive read the xforce twin 2.5" catback seems to b a good option, which I could fit myself, wth the option to get a dump, cat n tune in 6 - 12 months time pls help thanks