2015-2017 Ford Mustang Quad Fin Rear Diffuser - Matte Black
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*** Market Conditions after 2020 have changed the landscape of automotive parts. Although we try to stock 1000's of items in our multiple warehouse and use multiple distribution channels, having back-orders are unavoidable in today's market. If you are in need of a product quickly, we suggest email, message, or call us for availability so that we may explore your options.
Email: Sales@Speedzoneweb.com
Call: 407-846-8430
Text: 407-749-6314
Frequently Asked Questions
2015–2017 Ford Mustang Quad Fin Rear Diffuser — Matte Black
Four-fin rear diffuser in matte black hard panel construction, bolts to the factory rear bumper area. Designed to integrate with your Mustang's existing mounting points without modification. Finished and ready for installation.
Key Features
- Quad-fin design — Creates visual depth at the rear fascia while maintaining clean lines
- Matte black finish — No gloss, minimal reflection, pairs with modern Mustang styling
- Hard panel construction — Rigid material resists flexing and impact better than thin shells
Specs
- Material: Hard panel construction
- Finish: Matte black
- Configuration: Quad-fin rear diffuser
- Condition: New
What's Included
- Diffuser assembly
Frequently Asked Questions
Will this scrape on steep driveway approaches or parking lot angles?
The diffuser extends from the factory rear bumper area, so scrape risk depends on your approach angle and current ground clearance. Test fit before committing to permanent mounting. If clearance is tight, you can adjust mounting depth slightly or limit the installation to level surfaces only.
What hardware do I need to bolt this on?
The diffuser assembly ships without fasteners. You'll need to source bolts compatible with your factory rear bumper mounting points—check your Mustang service manual or test-fit to confirm bolt size and quantity before ordering.
Is this functional downforce or purely cosmetic?
This is a visual accent piece. At street speeds, aerodynamic effect is minimal. It's designed to add rear-end character and visual balance to the fascia, not for track performance gains.
Our History
For 26 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.