The 4 inch intermediate pipe and tailpipes are formed of stainless heavy-wall tubing with mandrel bends to maximize airflow, minimize backpressure and lower exhaust gas temperatures. The system safely clears the spare tire, shocks and brake lines. Monster duals include exclusive 6 X 5 inch ob-round (patented design) polished-stainless angle-cut rolled-edge tailpipe tips (with your choice of high temp Black or chrome-over stainless), while Monster singles include a 5 inch round tip. Adjustable clamp for positioning on tailpipe. And to help keep the tips looking good, there's a 1/2 inch air gap to keep heat from tarnishing the finish. Monster Exhaust System, Single Exit, Black Tip for use with 2007-2013 Dodge/Ram 6.7L, SCLB-MCSB Standard Cab Long Bed to Mega Cab Short Bed Key Features: Mandrel bent Stainless Steel construction Virtually eliminates backpressure Lowers exhaust gas temps Dramatically improves flow Maximum Airflow 4 inch stainless mandrel-bent system Safely clears spare tire Huge Cerakote Black Tips