Dual 2.25" diameter inlet, dual 2.5" outlet Resonator contains an internal H-Pipe for increased performance and improved sound. Use this resonator with Cat-Back(tm) systems 140590 and 140591 to create a quieter sound. It is NOT intended for use with other systems. This is NOT a stand alone resonator. Built from premium T-304 stainless steel, superior to T-400 series knockoffs (such as 409), to give you the absolute best in performance and durability. Precision computer numerical control (CNC) manufacturing ensures an accurate fit. Best of all, Borla(r) stands behind every resonator with a Million-Mile Warranty. Just what you'd expect from the worlds most experienced (and most winning) exhaust brand.
Installation Instructions


This Part Fits:

Year	Make	Model	Submodel
2015-2017	Ford	Mustang	GT
2015	Ford	Mustang	GT 50 Years Limited Edition
2015-2017	Ford	Mustang	GT Premium