The Motordyne Q60 ShockWave)))  SKU#: MD-046-3T 2017 Q60 3.0T / Red Sport (VR30)  RWD & AWD. Install time: 1.5 hours.  All bolt-on.  No cutting required.  Drone-controlled cruising with tuned side branch resonators that allow engine sound to pass, but notch out drone. 2.5″ to 3.0″ gradually expanding flow architecture eliminates the acoustic artifacts and resonances inherent in a single diameter design, clarifies the sound, lowers exhaust back pressure and increases engine power. Exponential sound control at the pedal puts you in control. Deep and moderated while cruising.  Beautifully intoxicating at WOT.   Never drone, never rasp and always headache free.   TIG welded and polished Stainless Steel 304 alloy.  Tip options in Titanium and Stainless Steel.  4.5″ standard and 5″ options available. 3 year limited warranty. Proudly Made in the U.S.A.