Exhaust Headers, Manifolds and Components

Kooks

1-5/8" SS Long Tube Headers

$1,123.40

SKU: KOO-11312000

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 1-5/8" SS Headers are long tube headers designed for the 2005-2010 Ford Mustang GT 4.6L 3V with a manual transmission. Constructed from 16-gauge 304 stainless steel, these headers feature 1-5/8" mandrel-bent primaries and 3/8" thick laser-cut flanges. Installation hardware is included.
Show original supplier description
The Kooks 1-5/8" x 2-1/2" SS Headers are engineered for the 2005-2010 Ford Mustang GT 4.6L 3V equipped with a manual transmission. These long tube headers are constructed from durable 16-gauge 304 stainless steel, ensuring longevity and resistance to corrosion. They feature 1-5/8" mandrel-bent primaries and 3/8" thick laser-cut flanges with a stock bolt pattern for a precise fit. Installation hardware is included with these headers. Please note that these headers require a Kooks X-Pipe or H-Pipe with a 2-1/2" inlet for proper integration. Additionally, if pairing with an automatic transmission, two CAS-109014 Oxygen Sensor Extension Harnesses will be necessary. Important Warning: This product is intended for closed-course competition use only and is not legal for street use. Its sale, use, or installation may be illegal nationwide under the Federal Clean Air Act. California residents should be aware that this product can expose them to chemicals like Chromium and Nickel, which are known to cause cancer, birth defects, or reproductive harm. A Vehicle Compliance Waiver must be signed before purchasing.

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

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandKooks
Part NumberKOO-11312000
CategoryExhaust

About MOTORMIA

5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold

Buy with Confidence

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.

View Full Return Policy

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.

View Full Shipping Policy