CB Engineering 2012 - 2013 S 350 BlueTEC Turbo Back Pipe. . Our turbo Pipes are made from 304 Mandrel Bent stainless steel tubing. Our turbo back pipe has sensor bungs to re-install your O2 sensors and EGT sensors. Comes with 304 stainless steel brackets to bolt to the stock mounts. Our turbo pipe will bolt in with zero modifications. You use your existing front and rear clamps. We can weld in the CCV reroute exhaust fitting when purchased at the same time. Requires proper ECM tuning to run this product. Non stock item, please allow 3-4 weeks for completion. For off road use only, not available for street driven vehicles. Cannot be sold to California.