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Exhaust› Headers, Manifolds and Components

Kooks 1-7/8"

1-7/8" Stainless Steel Long Tube Headers

$1,526.64 $1,344.40 Save $182.24

SKU: 11512402

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Kooks 1-7/8" x 3" SS Headers are long tube headers designed for the 2015-2026 Ford Mustang GT 5.0L 4V. These headers feature 304 stainless steel construction with 3/8" thick laser-cut flanges.

They have 1-7/8" mandrel-bent primaries and a 3" collector diameter. The headers include gaskets and are designed with a stock bolt pattern. Oxygen sensor extension harnesses for 2015-2017 and 2018+ vehicles are also included.
Show original supplier description
The Kooks 1-7/8" Stainless Steel Long Tube Headers are engineered for the 2015-2026 Ford Mustang GT 5.0L 4V. These headers are crafted from durable 304 stainless steel, ensuring longevity and resistance to corrosion. They feature 3/8" thick laser-cut flanges for a precise fit and 1-7/8" mandrel-bent primaries designed to optimize exhaust flow. Included in the kit are 755392 gaskets, specific oxygen sensor extension harnesses (CAS-105979 for 2015-2017 models and CAS-109677-8 for 2018+ models), and necessary bolt kits (BK109 & BK114) for installation. Please note that these headers require Kooks Front Connection pipes and either OEM Adapters (11513000) or an X-Pipe / H-Pipe exhaust system for full integration. These headers are also available as part of complete Header and Connection Kits, such as part numbers 1151H432 & 1151H442. Built to order in North Carolina, these headers have an estimated ship window of 4-6 weeks.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandKooks 1-7/8"
Part Number11512402
CategoryExhaust
5,000+ Trusted brands
1M+ Enthusiasts
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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