My Bad, I thought we were talking about the Magnaflow CatBack 16869 with massive 5" Tips.
It doesnt fit the non cutout bumper, However they do have several other options for a single to dual, but it only has 3" tips that go below the bumper
Part # 16870 Dual rear for non cut-out bumper (3.5" tips though)
Part# 16867 Single Side exit
Part# 16868 Dual Side Exit
Here's a better look at my 16869 and it should be clear based on the photos it's meant to replace the stock duals with bumper cutouts.
The tips are welded to the rear pipe section, and not adjustable if your bumper doesnt have the cutouts.
Stock 3.5" tip