Has anyone noticed an increase in mpg when changing the exhaust, or did it stay the same? Does the stainless system have any weight savings over stock?
2014 Mustang GT custom ordered to replace the GT500: Sterling Gray, NAV, Recaros, Brembos, Glass Roof, back up camera, 6 speed auto, loaded
2012 Focus Titanium - 18" wheels with handling package
2009 GT500 Shelby (700 rwhp) - sold