2015-2017 Ford Mustang Quad Fin Rear Diffuser - Matte Black
K2 Industries
2015-2017 Ford Mustang Quad Fin Rear Diffuser - Matte Black
Check fitment before ordering
Match the year, make, model, trim and engine in the product details. Review mounting requirements and vehicle modifications. Ask us about this part.
Eligible returns within 30 days of receipt. Items must be unused, with tags and original packaging. Contact Lee Mods before sending anything back. Lee Mods pays return shipping for eligible U.S. returns; no restocking fee. See Returns & Exchanges for full conditions.
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.
Your vehicle
Select a vehicle to check the supplied application records for this part.
Choose or change vehicle →Product reference & ordering help
Supplier & part identification
K2 Industries
| Option | SKU / part reference |
|---|---|
| Standard | K2-2945-FORD-006-BA |
Vehicle compatibility
Read the application years, model, trim, engine and exclusions in the description above. A make-level collection or product recommendation alone does not confirm fitment.
Request fitment help →Installation & specifications
Review the manufacturer’s specifications and installation notes above. Confirm required mounting hardware, tools and modifications before ordering. If instructions are not supplied, contact us with the part reference.
Shipping expectations
Processing and delivery vary by product, supplier and destination. Contact us to confirm timing for your part before planning an installation.
Shipping & delivery informationManufacturer warranty
Coverage and exclusions vary by manufacturer and part. Review the supplied product documentation or ask us for the applicable terms.
Warranty information