Kooks 1-7/8in ULTRA GREEN Catted Long Tube Header Kit - Ford Mustang GT / Dark Horse 2015-2026
Kooks 1-7/8in ULTRA GREEN Catted Long Tube Header Kit - Ford Mustang GT / Dark Horse 2015-2026, view 2
Kooks 1-7/8in ULTRA GREEN Catted Long Tube Header Kit - Ford Mustang GT / Dark Horse 2015-2026, view 4
Kooks 1-7/8in ULTRA GREEN Catted Long Tube Header Kit - Ford Mustang GT / Dark Horse 2015-2026
Kooks 1-7/8in ULTRA GREEN Catted Long Tube Header Kit - Ford Mustang GT / Dark Horse 2015-2026, view 2
Kooks 1-7/8in ULTRA GREEN Catted Long Tube Header Kit - Ford Mustang GT / Dark Horse 2015-2026, view 4

Kooks 1-7/8in ULTRA GREEN Catted Long Tube Header Kit - Ford Mustang GT / Dark Horse 2015-2026

Kooks Headers SKU: KSH1151H452
Price
10% OFF
On Backorder – Order Now or Contact Us for Availability
Make sure this fits your vehicle Select your vehicle to confirm fitment before you order. Check
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This Kooks kit pairs 1-7/8 in primary long tube headers with 3 in ULTRA GREEN catted connection pipes and the OEM connection adapters needed to mate back to the factory exhaust on the 5.0L 4V Coyote. Everything is handcrafted from T304 aircraft quality stainless steel, and the 3 in collectors carry the Kooks patented Scavenging Spike that smooths the merge out of the primary tubes. The ULTRA GREEN converters are 4-1/2 in diameter 400 cell units, EPA verified and rated to 850 wheel horsepower, a step above the standard GREEN and H.O. GREEN cats Kooks offers on the same platform. Gaskets, an oxygen sensor extension harness, oxygen sensor spacers, clamps and a bolt kit are included. Kooks has built headers since 1962, every product is dyno and race tested, and these are handcrafted to order in North Carolina.

Specifications

Type Long tube headers with ULTRA GREEN catted connection pipes and OEM adapters
Material T304 aircraft quality stainless steel
Primary Tube 1-7/8 in
Collector 3 in, with Kooks patented Scavenging Spike
Connection Pipes 3 in
Catalytic Converters ULTRA GREEN, 4-1/2 in diameter, 400 cell, rated to 850 wheel horsepower
Included Headers, catted connection pipes, OEM connection adapters, gaskets, oxygen sensor extension harness, oxygen sensor spacers, clamps, bolt kit
Emissions EPA verified catalytic converters; not legal for sale or use in California
Origin Handcrafted in North Carolina, USA
Quantity 1 kit
Warranty Kooks Limited Lifetime Warranty to the original purchaser
Part Number 1151H452

This part fits:

Year Make Model Submodel
2019-2020 Ford Mustang Bullitt
2024-2026 Ford Mustang Dark Horse
2024-2025 Ford Mustang Dark Horse Premium
2015-2026 Ford Mustang GT
2015 Ford Mustang GT 50 Years Limited Edition
2015-2026 Ford Mustang GT Premium
2021-2023 Ford Mustang Mach 1

Shipping

  • Orders placed before 3 PM EST typically ship the same business day. Larger items ship within 1 to 3 business days.
  • Standard, expedited, and overnight options at checkout.
  • Oversized items ship by freight and take longer.
  • Special order items follow a lead time we confirm with you individually before the order is committed.
  • Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
  • Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
  • International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

  • 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
  • Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
  • Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
  • Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
  • Product images may be representative. The SKU and specifications in the listing are what ships.
  • Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Returns & Refunds · Warranty
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