I'm using a 12619(6in round, 14"body, 3in in/out) with a 3in QTP e-cutout, it is dumped before the rear axle, also have the Mag y-pipe. This setup along with my BBK's turned out awesome, nice sound at idle and AWESOME when you get on it, nevermind with the cutout opened!!LOL It's pretty much the same muffler as their race one with the same dimensions but a different finish. Good luck.
2008 VW .:R32, 3.2l, AWD, V6, #2952/5000