Roush Performance
2011-2014 Mustang 5.0L Catted H-Pipe - Kooks
3 inch inlet 2-3/4 inch outlet OEM Made of 18 gauge 304 stainless steel Connects to the factory cat-back exhaust Works with ROUSH axle-back exhaust part # 421126 and 421127 Requires use of long tube headers part # 60-41-175 or 60-41-188 Special Order, Please allow for longer than normal lead times.
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