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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
$1,091.60 USD
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Kooks Custom Headers 11515450 3" SS Connection-Back H-Pipe Exhaust w/SS Tips. 2018-2020 Mustang GT 5.0L.
3" Connection-Back Exhaust System. 2018-2020 Mustang 5.0L 4V.
  • 3" Mandrel Bent 304 Stainless Steel Tubing
  • Includes H-Pipe, 3" Stainless Oval Mufflers and 4" Slash Cut Polished Stainless Quad Tips
  • Requires Kooks Long Tube Headersand Front Connection Pipes
  • Does Not Connect to OEM Exhaust
$2,995.10 USD
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Kooks Custom Headers 11516450 3" SS Muffler Delete Axle-Back Exhaust w/SS Tips. 2018-2020 Mustang 5.0L.
2-1/2" x 3" Muffler Delete Axle-Back Exhaust. 2018-2020 Mustang GT 5.0L 4V
  • 3" Mandrel Bent 304 Stainless Steel Tubing
  • Includes 3" Stainless Muffler Delete Pipe and 4" Slash Cut Polished Stainless Quad Tips
  • Connects to OEM Exhaust
  • Factory Exhaust Must be Cut for Installation
  • Factory Exhaust Must Be Cut To Install
$1,014.14 USD
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Kooks Custom Headers 13513300 3" SS GREEN Catted Y-Pipe. 2011-2014 F150 5.0L 4V. Connects to OEM.
2011-2014 Ford F150 Coyote 5.0L 4V 3" x OEM GREEN Catted Stainless Y-Pipe. Requires Kooks Long Tube Headers
$2,602.70 $2,531.93 USD
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Kooks Custom Headers 22413200 3" SS Catted SS Y-Pipe. 1998-2002 Camaro/Firebird 5.7L. Connects to OEM.
1998-2002 Chevrolet Camaro and Pontiac Firebird LS1 5.7L 3" x 2-3/4"(OEM) Catted Stainless Steel Y-Pipe (To OEM Connection point). Requires Kooks Long Tube Headers STANDARD RACE CATS NOT FOR USE IN FORCED INDUCTION APPLICATIONS
$1,274.83 $1,162.13 USD 8%
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Kooks Custom Headers 28624150 3" SS KST Cat-Back w/OEM Bumper Mounted Tips. 2019-2020 GM Truck 5.3L.
2019-2020 GM 1500 Series 5.3L EcoTec3 V8/4.3L EcoTec3 V6 trucks with 147.43" and 147.53" Wheelbase
  • 2-3/4"(OEM) x 3" x Dual 2-1/2" Stainless Steel Cat-Back Rear-Exit Exhaust
  • Connects to OEM connection point
  • For use with Factory Bumper Mounted tips
  • KST (Kooks Street Type) Muffler
  • Best Suited for use with Kooks Headers and Y-Pipe
  • "Quiet" option when used with OEM manifolds and Cats
Fits Double Cab Trucks w/ Standard Box & Crew Cab Trucks w/ Short Box
  • For trucks with bumper mounted OEM tips.
$1,643.20 USD
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Kooks Custom Headers 7046-AS LSX Header Flange - 3/8" Thick Stainless. Round Port for 1-7/8" Primaries.
LSX Header Flange
  • 3/8" Thick 304 Stainless Steel
  • Stock Bolt Pattern
  • Round Ports for 1-7/8" Primaries
  • Sold Individually
$42.80 USD
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Kooks Custom Headers 9910S 2-1/8" x 3-1/2" 304 Stainless Steel Slip-On Collector
2-1/8" x 3-1/2" 304 Stainless Steel Slip-On Collector
  • 4-Into-1 Design
  • 2-1/8" I.D. Inlet to Slip Over 2-1/8" Primaries
  • Kooks Patented Scavenging Spike
  • 3-1/2" O.D. Outlet
  • Includes 2) A/B Style Tabs to Secure to Primaries
  • Sold Individually
$173.50 USD
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