Part # Year Engine Series Tip Size Tube Size Exit Tip Finish MAP S197 V6 CAT-BACK 16605 2005-2009 V6 4.0L COMPETITION 3.5in. 2.5in. DUAL Polished $689.51 15078 2010 V6 4.0L; Req. Fascia or Modification COMPETITION 4in. 2.5in. QUAD Polished $957.33 16575 2010 V6 4.0L; Req. OEM V8 Fascia or Modification COMPETITION 4in. 2.5in. DUAL Polished $738.34 16576 2010 V6 4.0L STREET 4in. 2.5in. SINGLE Polished $463.85 15591 2011-2012 V6 3.7L STREET 4in. 2.5in. DUAL Polished $796.84 15592 2011-2012 V6 3.7L COMPETITION 4in. 2.5in. DUAL Polished $772.43 15153 2013 V6 3.7L STREET 4in. 2.5in. DUAL Polished $796.84 15154 2013 V6 3.7L COMPETITION 4in. 2.5in. DUAL Polished $772.43 15244 2014 V6 3.7L STREET 4.5in. 2.5in. DUAL Polished $796.84 15245 2014 V6 3.7L COMPETITION 4.5in. 2.5in. DUAL Polished $772.42 S197 V6 AXLE-BACK 15889 2005-2009 V6 4.0L STREET 3.5in. 2.5in. SINGLE Polished $378.87 16577 2010 V6 4.0L STREET 4in. 2.5in. SINGLE Polished $399.98 15076 2011-2012 V6 3.7L; Req. Fascia or Modification COMPETITION 4in. 2.5in. QUAD Polished $679.20 15595 2011-2012 V6 3.7L STREET 4in. 2.5in. DUAL Polished $684.42 15596 2011-2012 V6 3.7L RACE 4in. 2.5in. DUAL Polished $465.25 S 197 FORD MUSTANG V6 Part # Year Engine Notes Tubing Size MAP S197 V6 X-PIPE W/ CONVERTERS (NO WARRANTY) 16397 2011-2012 V6 3.7L Metallic; Off–Road Use Only; Exc. CA 2.5in. TBA S197 V6 X-PIPE 16411 2005-2009 V6 4.0L Clamp-On Behind OEM Converter 2.5in. $355.62 16458 2010 V6 4.0L V6 Single to V8 Dual Conversion; Clamp-On Behind OEM Converter 2.5in. $401.24 16396 2011-2012 V6 3.7L Clamp-On Behind OEM Converter 2.5in. TBA MAGNAFLOW.COM COMPETITION Aggressive exhaust note. Reduced system mass. CAT-BACK Replaces all components from behind The oem catalytic converter. AXLE-BACK Replaces the rearmost Exhaust components. STREET Balanced interior/exterior sound levels. Maintains exhaust efficiency. RACE Muffler Delete. Most aggressive sound. SERIES PRODUCT