Overview Reviews Product Description The CORSA Double X-Pipe crosses twice, opening the exhaust path improving flow dynamics. Benefits include; increased flow, improved HP and TQ, and a more refined exhaust note. Product Videos Custom Field Product Reviews Write a Review Write a Review × Corsa 3" Double Helixx X Pipe for 16-19 Ford Mustang GT350 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *