The Motordyne G37 Sedan ShockWave))) A True Dual X (TDX) pipe exhaust system optimized for the highest torque and power by using progressively expanding dual 2.5″ primary tubes and dual 3.0″ exhaust tubing for the best overall power curve.   A high quality build made of polished stainless steel 304L alloy with back purged and TIG welded construction.  Comes with  4.5″ titanium blue rolled tips.    Note: For AWD – please specify in the comment section.  No international shipping