The car has a more pronounced "throaty" sound than the stock y-pipe.

I did new o2s...Borla y-pipe, Random tech cat all at once so I'm not sure how much the y-pipe alone affected it...but very happy nonetheless.

 

The install is easy. You will need to soak all the manifold studs with PB Blaster / WD40 or something like that the night before (give it plenty of time). We ended up snapping a few of mine when we put the y-pipe on originally which were easy to replace and the studs can be picked up at a parts store. My car ended up probably being 25% louder with the Borla in front of the welded in Flowmaster (but it was very deep and sounded awesome IMO). By the way.... PM sent.