Exterior Components› Body Panels and Components

SPEC D TUNING

GT350 Style Rear Diffuser

$733.08

SKU: SPECDTUNING-LFRD-MST15GT-BN

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Spec-D Tuning GT350 Style Rear Diffuser is a rear diffuser designed to add a bold, performance-inspired look to your Mustang. It features a matte black finish and dual stainless steel muffler tips for an aggressive exhaust setup. This diffuser enhances both style and aerodynamics by improving airflow.
Show original supplier description
The Spec-D Tuning GT350 Style Rear Diffuser is engineered to provide a bold, performance-inspired aesthetic for your Ford Mustang. With its GT350-inspired design, matte black finish, and dual stainless steel muffler tips, this rear diffuser significantly enhances the vehicle's rear-end appearance. Constructed from durable polypropylene with stainless steel muffler tips, this diffuser is built to withstand the elements and maintain its sleek style over time. Its design not only boosts visual appeal but also aims to improve airflow, contributing to a track-ready look and feel for your Mustang. This rear diffuser is designed for easy bolt-on installation and is specifically tailored for 2015-2017 Ford Mustang models. It is important to note that this part fits only 2015-2017 Ford Mustang models equipped with the premium package.

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

BrandSPEC D TUNING
Part NumberSPECDTUNING-LFRD-MST15GT-BN
CategoryExterior Components

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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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