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Kooks Custom Headers 11203240 2-1/2" SS Catted X-Pipe. 1999-2004 Mustang. (Connects to OEM)
2-1/2" x 2-1/2" (OEM) Catted Stainless Steel X-Pipe. 1999-2004 Ford Mustang GT and Cobra 4.6L 2V/4V.
  • 2-1/2" 16GA 304 Stainless Steel construction
  • Ball and socket style connection to Headers
  • KOOKS Standard 300 Cell High Flow Catatlytic Converters
  • Requires Kooks Headers with 2-1/2" Collectors
  • Includes Clamps
  • 2-1/2" Outlet connects to OEM exhaust
  • KOOKS Standard Cats not recommended for use with forced induction
$1,180.65 USD
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Kooks Custom Headers 11304100 2-1/2" SS Cat-Back Exhaust. 2005-2009 Mustang GT/2007-2009 GT500.
2-1/2" Stainless Steel Cat-Back Exhaust. 2005-2009 Ford Mustang GT 4.6L 3V & 2007-2009 Ford Shelby GT500 5.4L 4V
  • 2-1/2" 304 Stainless Steel Mandrel Bent Tubing
  • KOOKS Polished Stainless Race Mufflers
  • 4" Polished Stainless Tips
  • Connects at OEM Connection Point re-using OEM Clamps
  • Connects to OEM exhaust or outlet of KOOKS X-Pipe/H-Pipe with 2-1/2" Outlet
$1,546.64 USD
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Kooks Custom Headers 11304300 3" SS Exhaust w/SS tips. 2005-2009 Mustang GT/GT500 (Requires Kooks X or H-Pipe)
3" Stainless Steel Cat-Back Exhaust. 2005-2009 Ford Mustang GT 4.6L 3V & 2007-2009 Ford Shelby GT500 5.4L 4V
  • 3" 304 Stainless Steel Mandrel Bent Tubing
  • KOOKS Polished Stainless Oval Mufflers
  • 4" Polished Stainless Tips
  • Does Not Connect to OEM Exhaust
  • Connects outlet of KOOKS X-Pipe/H-Pipe with 3" Outlet
  • Includes Clamps
  • 3" INLET DOES NOT CONNECT TO OEM.
$1,619.63 $1,521.47 USD 6%
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Kooks Custom Headers 11313500 2-1/2" SS Catted H-Pipe. 2005-2010 Mustang GT 4.6L 3V.
2-1/2" x 2-1/2" (OEM) Catted Stainless Steel H-Pipe. 2005-2010 Ford Mustang GT 4.6L 3V.
  • 2-1/2" 16GA 304 Stainless Steel construction
  • Ball and socket style connection to Headers
  • KOOKS Standard 300 Cell High Flow Catatlytic Converters
  • Requires Kooks Headers with 2-1/2" Collectors
  • Includes Clamps
  • 2-1/2" Outlet connects to OEM exhaust re-using OEM Clamps (Not Included)
  • KOOKS Standard Cats not recommended for use with forced induction
$1,259.07 USD
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Kooks Custom Headers 11313200 2-1/2" SS Catted X-Pipe. 2005-2010 Mustang GT 4.6L 3V.
2-1/2" x 2-1/2" (OEM) Catted Stainless Steel X-Pipe. 2005-2010 Ford Mustang GT 4.6L 3V.
  • 2-1/2" 16GA 304 Stainless Steel construction
  • Ball and socket style connection to Headers
  • KOOKS Standard 300 Cell High Flow Catatlytic Converters
  • Requires Kooks Headers with 2-1/2" Collectors
  • Includes Clamps
  • 2-1/2" Outlet connects to OEM exhaust re-using OEM Clamps (Not Included)
  • KOOKS Standard Cats not recommended for use with forced induction
$1,133.08 USD
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Kooks Custom Headers 1131H030 1-5/8" Header and GREEN (X) Connection Kit. 2005-2010 Mustang GT 4.6L 3V
2005-2010 Ford Mustang GT 4.6L 3V Manual or Automatic Transmission. 1-5/8" x 2-1/2" Stainless Steel Long Tube Headers and 2-1/2" x 2-1/2" GREEN Catted Stainless Steel X-Pipe.
$2,931.77 USD
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Kooks Custom Headers 11404200 3" Cat-Back. 2011-2014 Mustang GT/2011-2012 GT500 (Connnects to OEM)
2-3/4" x 3" Cat-Back Exhaust. 2011-2014 Ford Mustang GT 5.0L 4V 2011-2012 Ford Mustang GT500 5.4L 4V
  • 3" 304 Stainless Steel Mandrel Bent Tubing
  • KOOKS Polished Stainless Oval Mufflers
  • 4" Polished Stainless Tips
  • Connects at OEM Connection Pointre-using OEM Clamps(Not Included)
  • Will work with OEM exhaust or KOOKS Headers & X-Pipe/H-Pipe with 2-3/4" Outlet
$1,539.03 USD
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Kooks Custom Headers 11413200 3" x 2-3/4"(OEM) SS Catted X-Pipe. 2011-2014 Mustang GT 5.0L.
3" x 2-3/4" (OEM) Catted Stainless Steel X-Pipe. 2011-2014 Ford Mustang GT 5.0L 4V.
  • 3" 16GA 304 Stainless Steel construction
  • Ball and socket style connection to Headers
  • KOOKS Standard 300 Cell High Flow Catatlytic Converters
  • Requires Kooks Long Tube Headers
  • Includes Clamps
  • 2-3/4" Outlet connects to OEM exhaust re-using OEM Clamps (Not Included)
  • KOOKS Standard Cats not recommended for use with forced induction
$1,204.15 USD
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Kooks Custom Headers 11413500 3" x 2-3/4"(OEM) SS Catted H-Pipe. 2011-2014 Mustang GT 5.0L.
3" x 2-3/4" (OEM) Catted Stainless Steel H-Pipe. 2011-2014 Ford Mustang GT 5.0L 4V.
  • 3" 16GA 304 Stainless Steel construction
  • Ball and socket style connection to Headers
  • KOOKS Standard 300 Cell High Flow Catatlytic Converters
  • Requires Kooks Long Tube Headers
  • Includes Clamps
  • 2-3/4" Outlet connects to OEM exhaust re-using OEM Clamps (Not Included)
  • KOOKS Standard Cats not recommended for use with forced induction
$1,245.45 USD
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Kooks Custom Headers 1141H220 1-3/4" Header and Catted (X) Connection Kit. 2011-2014 Mustang GT 5.0L 4V.
Header and Connection Kit. 2011-2014 Ford Mustang GT 5.0L 4V. Includes 1-3/4" x 3" Stainless Steel Long Tube Headers & 3" x 2-3/4" (OEM) Catted Stainless Steel X-Pipe.
$1,986.16 USD
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Kooks Custom Headers 1141H420 1-7/8" Header and Catted (X) Connection Kit. 2011-2014 Mustang GT 5.0L 4V.
Header and Connection Kit. 2011-2014 Ford Mustang GT 5.0L 4V. Includes 1-7/8" x 3" Stainless Steel Long Tube Headers & 3" x 2-3/4" (OEM) Catted Stainless Steel X-Pipe.
$2,082.23 USD
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Kooks Custom Headers 1141H450 1-7/8" Header and Catted (H) Connection Kit. 2011-2014 Mustang GT 5.0L 4V.
Header and Connection Kit. 2011-2014 Ford Mustang GT 5.0L 4V. Includes 1-7/8" x 3" Stainless Steel Long Tube Headers & 3" x 2-3/4" (OEM) Catted Stainless Steel H-Pipe.
$3,082.74 USD
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Kooks Custom Headers 1141H650 2" Header and Catted (H) Connection Kit. 2011-2014 Mustang GT 5.0L 4V.
Header and Connection Kit. 2011-2014 Ford Mustang GT 5.0L 4V. Includes 2" x 3" Stainless Steel Long Tube Headers & 3" x 2-3/4" (OEM) Catted Stainless Steel H-Pipe.
$2,910.28 USD
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Kooks Custom Headers 11514101 3" Cat-Back (X-Pipe) w/SS Tips. 2015-2017 Mustang GT 5.0L. Connects to OEM.
2-1/4" x 3" Stainless Steel Cat-Back Exhaust. 2015-2017 Ford Mustang GT 5.0L 4V
  • Connects at OEM Connection Point
  • 3" Mandrel Bent 304 Stainless Steel Tubing
  • Includes X-Pipe, 3" Polished Stainless Oval Mufflers and 4" Slash Cut Polished Tips
  • Does Not Require KOOKS Headers
  • Ships in 2 Boxes
.
$1,750.51 $1,462.37 USD 16%
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Kooks Custom Headers 1154H330 1-3/4" x 1-7/8" Header and GREEN Connection Kit. 2015-2020 Shelby GT350 5.2L 4V
Header and Connection Kit. 2015-2023 Ford Mustang Shelby GT350 5.2L 4V. Includes 1-3/4" x 1-7/8" x 3" Stainless Steel Long Tube Stepped Headers & 3" x 2-3/4" GREEN Catted Stainless X-Pipe.
$5,491.49 USD
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Kooks Custom Headers 1151H231 1-3/4" Stainless Headers & GREEN Catted Conn. Kit. 2015-2020 Mustang GT 5.0L.
2015-2020 Mustang 5.0L 4V 1-3/4" x 3" Stainless Headers w/ GREEN Catted Connection Pipes and OEM Adapters. No additional parts required.
$3,145.43 USD
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Kooks Custom Headers 1151H431 1-7/8" Stainless Headers & GREEN Catted Conn. Kit. 2015-2020 Mustang GT 5.0L.
2015-2020 Mustang 5.0L 4V 1-7/8" x 3" Stainless Headers w/ GREEN Catted Connection Pipes and OEM Adapters. No additional parts reuired.
$3,252.97 $3,170.35 USD
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Kooks Custom Headers 1151H631 2" Stainless Headers & GREEN Catted Connection Kit. 2015-2020 Mustang GT 5.0L.
2015-2020 Mustang 5.0L 4V 2" x 3" Stainless Headers w/ GREEN Catted Connection Pipes and OEM Adapters. No additional parts required.
$3,276.36 USD
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Kooks Custom Headers 11543200 3" x 2-3/4" SS Catted X-Pipe. 2015-2020 Shelby GT350. Retains OEM Mufflers.
3" x 2-3/4" Catted Stainless X-Pipe. 2015-2023 Ford Mustang Shelby GT350 5.2L 4V
  • 3" Mandrel Bent 304 Stainless Steel Tubing
  • Connects to OEM Exhaust
  • Retains Factory Mufflers
  • Factory Exhaust Must be Cut for Installation
  • Requires Kooks Long Tube Headers
  • STANDARD RACE CATS NOT FOR USE IN FORCED INDUCTION APPLICATIONS
$1,996.83 $1,972.91 USD
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Kooks Custom Headers 1154H320 1-3/4" x 1-7/8" Header and Catted Connection Kit. 2015-2020 Shelby GT350 5.2L 4V
Header and Connection Kit. 2015-2023 Ford Mustang Shelby GT350 5.2L 4V. Includes 1-3/4" x 1-7/8" x 3" Stainless Steel Long Tube Stepped Headers & 3" x 2-3/4" Catted Stainless X-Pipe.
$4,565.67 USD
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