Hey all, recently I got myself a g37x coupe. It's in great condition aside from some small paint bubbling on both rear quarter panels, a mystery ebay axle back exhaust and a leak near the flex pipes. It's too cold to tackle the paint where I live (car won't go up my drive way without ripping the bumper off so no garage to work out of) so I'm going to fix this leak first. I was looking into just replacing the y-pipe with the ISR one. Anyone have any suggestions or insight on what they have done with their AWD coupes?