Motordyne Advanced Resonance Tuning Test Pipes 3.5L DE

ADVANCED RESONANCE TUNING (ART) The world’s best-selling exhaust part for the VQ engine. Through countless hours of research and development, a new path has been explored in the never-ending quest for engineering excellence. A method of directly altering exhaust harmonics for enhanced performance and sound. Patent Pending Advanced Resonance Tuning (TM). (Due to Carb regulations item is not/shipped to CA.-No International shipping)