For Quad tip muffler install, the mufflers themselves will need to be moved inward, centering the outer tip in the old single arch exhaust cutout. You will need to redo/fab/modify the rear piping from the rear axle back inorder to both center the mufflers upon a new origin as well as set the angles of the mufflers and tips. FYI, they are very tight on the spare tire well after being moved in, I occasionally get some noise/vibration from them hitting the tire well, especially after I pulled the mufflers tight up in the bumper. I also removed the heat shield thats normally there for a few mm of extra clearance
Regarding sound, 14815/816's will not sound any different than the single tip setups others do, its the same muffler can, just a different tip configuration
My exhaust is quite a bit louder with the bigger turbo than a stock turbo but here's a vid of my car with a 3" DP, Neuspeed catback (including the Neuspeed center muffler), and Magndflow 14816's. (** In boost the wastegate is externally dumped, thats not normal unless you have an external wastegate dump)
Since that vid I threw all the Neuspeed remains in the garbage and now have full 3" turbo back to the rear axle, 2.5" splits into the 14816's (no center muffler) and it is a good 20-30% louder than in the vid
Rear pic with 14816, 3.5" tips
Underside pics
Bookmarks