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Exhaust› Headers, Manifolds and Components

Kooks

Long Tube Headers

$1,526.64 $1,373.98 Save $152.66

SKU: 11512402

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Kooks 11512402 is a set of long tube headers designed for 2015-2026 Ford Mustang GT 5.0L 4V vehicles. These headers are constructed from 304 stainless steel and feature 3/8" thick laser-cut flanges for durability.
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The Kooks 11512402 long tube headers are engineered for 2015-2026 Ford Mustang GT 5.0L 4V models. Constructed from premium 304 stainless steel, these headers offer enhanced durability with 3/8" thick laser-cut flanges and 1-7/8" mandrel-bent primary tubing. Installation includes 755392 gaskets, and specific oxygen sensor extension harnesses for 2015-2017 cars (CAS-105979) and 2018+ cars (CAS-109677-8). Additionally, BK109 & BK114 bolt kits are required for installation. This product requires KOOKS Front Connection pipes and either OEM Adapters (11513000) or an X-Pipe / H-Pipe exhaust system for proper integration.

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
Part Number11512402
CategoryExhaust

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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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