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Exhaust Headers, Manifolds and Components

Kooks Headers

Kooks 15-21 Ford Mustang Shelby 1-3/4 x 1-7/8 x 3 Header & Green Catted X-Pipe Kit

$5,878.28 $4,913.57 Save $964.71

SKU: K009 1154H330

In Stock
In Stock
Ships by Jun 16
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Boost the performance of your 2015-2023 Mustang Shelby GT350 with the Kooks 1-3/4-Inch Long Tube Headers paired with a GREEN Catted X-Pipe. This high-performance upgrade is engineered to significantly increase horsepower and torque. The improved exhaust flow is thanks to meticulously designed long tube headers. Constructed from premium 304 aircraft-quality stainless steel, these headers are built for durability. The mandrel-bent tubing ensures a smooth exhaust flow, while the hand-tig welded craftsmanship speaks to the quality and attention to detail. This setup includes an OEM connection kit for seamless integration with your Mustang's existing system. Each set is dyno-tested to guarantee performance improvements. Kooks GREEN Catted products are rated for forced induction applications making up to 750 RHWP and are built to EPA specifications. 100% manufactured in the USA.

Fitment

Fitment Guaranteed

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Specifications

BrandKooks Headers
Part NumberK009 1154H330

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Buy with Confidence

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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