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2015-2017 Ford Mustang Quad Fin Rear Diffuser - Matte Black

$209.99 USD$260.00 USD
Specifications Part numbers, fitment codes and shipping
Brand
K2 Industries
Speedzone SKU
K2-2945-FORD-006-BA
Manufacturer part number
K2-2945-FORD-006-BA
UPC
BPLIP-0019
Category
Body Accessories
Shipping weight
2.0 lb
Item is in stockHurry! Low inventoryItem is out of stock Item is unavailable
Quantity
Notes
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.

✓ Factory Mounting Points ✓ Primer-Ready Finish ✓ Ships from FL Warehouse
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.

Full details on shipping times, returns, warranty and cancellations are on our policy page.

Market conditions after 2020 have changed the landscape of automotive parts. Although we stock thousands of items across multiple warehouses and distribution channels, back-orders are unavoidable in today's market. If you need a product quickly, email, message or call us to check availability so we can explore your options.

Answers to common questions are on our FAQ page.


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