What is included with this header?

The aFe Twisted Steel Shorty Header kit includes the header itself, along with the necessary gaskets and lower outlet hardware for installation.

Will this header fit my Mustang if it's modified?

This header is designed as a direct bolt-on replacement for factory exhaust manifolds on the 2011-2017 Ford Mustang V6-3.7L. Modifications to other exhaust components may affect fitment.

Is this header legal in California?

No, this header is not CARB approved and cannot be shipped to California due to emissions regulations.

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aFe

Specifications

Brand: aFe
Part #: 48-43031
UPC: 802959483558

aFe

aFe Twisted Steel Shorty Header 11-17 Ford Mustang V6-3.7L

Name: aFe Twisted Steel Shorty Header 11-17 Ford Mustang V6-3.7L
Brand: aFe
SKU: afe-afe-twisted-steel-shorty-header-11-17-ford-mustang-v6-3-7l-t14-432909
Price: 569.05 USD
Availability: InStock

$569.05

Only 2 left in stock

Worn-out exhaust manifolds cause reduced engine performance. This aFe Twisted Steel Shorty Header is a direct fix for your 2011-2017 Ford Mustang V6-3.7L.

Key Features

Increased Performance — Dyno testing showed gains of up to +14 HP and +15 lbs. x Ft. TQ.
Durable Construction — Made from 1-5/8 inch mandrel-bent 409 stainless steel tubing.
Improved Flow — 3-to-1 mitered merge collectors decrease turbulence and increase exhaust velocity.
Leak-Free Seal — Factory-style laser-cut machined mild steel flanges ensure a secure fit.
Direct Bolt-On Installation — No cutting or modifications needed.
Strong Welds — 100% MIG-welded for race-proven strength.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

No-fit, no charge. Wrong part? Send it back, free return label.

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About this part

Product Details

This system produced gains of up to +14 HP and +15 lbs. x Ft. TQ., as measured on our in-house dyno. This system is constructed of 1-5/8 IN mandrel-bent 409 stainless steel tubing for maximum strength and durability. Factory style laser cut machined mild steel flanges are used used for a secure leak-free seal. 3-to-1 Mitered Merge collectors decrease turbulence and increases exhaust velocity. The result is increased horsepower, torque and improved throttle response. Includes gaskets and lower outlet hardware for a direct bolt-on system. No cutting or modifications required for a hassle-free installation. Utilizing state-of-the-art computer-aided design technology, these headers are designed for custom, high tolerance factory fitment. 100% MIG-Welded for race-proven strength and durability.