Free shipping on eligible orders of $100 or more. Oversized and freight items excluded.

Shop parts / Kooks Headers / New

Kooks 15-24 Ford Mustang GT/D.H. 1-7/8in x 3in SS Headers w/ H.O. Green Catted Conn.

Kooks Headers · New

Kooks 15-24 Ford Mustang GT/D.H. 1-7/8in x 3in SS Headers w/ H.O. Green Catted Conn.

MPN 1151H442 · Store SKU ksh1151H442

$4,122.37
CHECK AVAILABILITY0 in supplier warehouses. Ask JuiceBuilt about availability.

Supplier stock checked 11/7/2026, 1:03:18 PM UTC. Adding a part does not reserve it.

30-day returns for unopened, unused new parts

Request a return within 30 calendar days after delivery. New parts must be unopened and unused.

Shipping & returns ↗This policy does not limit rights required by law.

Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.

Product details

Kooks Headers and Exhaust has been the leader in the High Performance Exhaust Industry for over 50 Years! Since 1962, Kooks takes pride in offering the best Headers and complete exhaust systems for your street, race and off-road applications. We have won hundreds of championships and set countless records in the NHRA, IHRA, NMCA, NMRA, NASCAR, NASA, SCCA and many other racing organizations. Now with three generations of family leadership, we are proud to say that all of our products are handcrafted here in the USA and we are proud to still be independently owned and operated. And don't forget, "Get Kookin with KOOKS!" 2015-2026 Mustang GT/Dark Horse 5.0L 4V 1-7/8in. x 3in. Headers w/H.O. GREEN Catted Connection Pipes and OEM Adapters. Includes Gaskets; Oxygen Sensor Extension; Clamps and Bolt Kit required for Installation. No additional parts required. 2015-2026 Mustang GT/Dark Horse 5.0L 4V 1-7/8" x 3" Headers w/ H.O. GREEN Catted Connection Pipes and OEM Adapters. Includes Gaskets, Oxygen Sensor Extension, Clamps and Bolt Kit required for Installation. No additional parts required. 1-7/8" SS Headers & H.O. GREEN Catted Connection Kit. 2015-2026 Mustang GT/DH 1-7/8in. SS Headers/H.O. GREEN Catted Connection Kit. 2015-2026 Mustang GT/DH

Manufacturer fitment & guides

  • 2015-2024 Mustang GT/Dark Horse 5.0L 4V 1-7/8" x 3" Stainless Headers w/High Output GREEN Catted Connection Pipes and OEM Adapters. 304 Stainless Steel Construction 3/8" Thick Laser Cut Flanges1-7/8" Mandrel Bent Primaries3" Collectors with Kooks' Patented Scavenging SpikeDual Bolt Pattern Header Flange Kooks High Output GREEN Cats EPA verified 300 Cell High Flow Catalytic ConvertersKooks High Output GREEN Cats are engineered to perform in Modern Muscle cars making more than 750 RWHPIncludes Gaskets, Oxygen Sensor Extension Harness, Clamps and Bolt Kit required for InstallationNo additional parts required.
  • Manufacturer-supplied application summary from Turn14; this may not be an exhaustive fitment list.

A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.

Part-specific notes

  • Not CARB approved. Destination and intended-use restrictions must be checked before sale.
  • Emissions acknowledgement required before purchase.
  • California Proposition 65: Y
More from Kooks Headers ↗See the JuiceBuilt workshop ↗

YOUR NEXT MOVE

Your build.