FBO N54 335i(X pipe, PE mod, "4 tips) 1st gear exhaust sounds

2009 335i n54 fbo+inlets(no e85 that day). For anyone considering the PE mod. Resonator deleted and replaced with x pipe. Kitty free. Secondaries in place. OEM Mufflers cut open. Resonator cut out of right muffler and replaced with straight pipe. Perforated pipe cut out of left muffler and replaced with straight pipe. Perforated pipe in between mufflers was left intact. All fiberglass packing replaced in both mufflers.