Skip to content
HARRYS EURO - NZ's Largest Online Performance Parts Store
HARRYS EURO – NZ's Largest Online Performance Parts Store

GT Mustang S550 FM Side Skirt Splitter Winglets (Pair)-Flow Designs

$190.00
This product is ready to order. Orders will have an estimated 2-week lead time.

Suits 2015-2017 Ford Mustang GT S550 FM

INSTALL DOES NOT REQUIRE SIDE SKIRT REMOVAL

The Mustang S550 FM side skirt winglets fit on the brass fittings installed on the rear of the side skirt splitters - customise to your taste!


Details

Our adjustable side skirt splitter winglets will bolt directly onto our Mustang S550 FM side skirt splitters thanks to the pre-pressed in threaded brass fittings on our side skirt splitters. Fitting kit is provided to ensure perfect fitment and can be adjusted to your liking. Adjustments can be made anywhere between 5mm-20mm on each side increasing the overall width up to 40mm!

The Mustang S550 FM body kit range shares the same durability and technology as our renowned WRX, Golf GTI, and Focus RS line up which is trusted by car enthusiasts worldwide.

Mustang S550 FM side skirt splitter extension sold separately.


GT Mustang S550 FM Side Skirt Splitter Winglets Kit Includes:

  • Mustang S550 FM adjustable side skirt splitter winglets (pair)
  • 2 Flow Designs stickers
  • Fitting kit

GT Mustang S550 FM Side Skirt Splitter Winglets Material & Finish:

  • 4.5mm thick textured ABS
  • Scratch resistant textured ABS plastic

Others Who Own This Kit:

Ford Mustang S550 FM Splitter Kit

Use of ABS Plastic

Please note that although all our precision-made ABS accessories are extremely strong and durable, they do not hold the same shatterproof label as our 10mm thick polyethylene composite splitters. The accessories are manufactured in ABS with the intention that they will be lighter, bolt-on attachments that will improve aesthetics and are easily replaceable if they become damaged from varying road conditions.

Install Instructions (PDF)
  • Unsure about fitment?
    Chat with our performance expert
  • NZ's largest Online performance parts store
  • All products backed by manufacturer warranty
  • 100% genuine parts
  • Hassle-free 30-day returns & refunds
  • Competitive pricing
    Seen a better price elsewhere? Let us check
  • Workshop installation available
  • Fast 1-3 days dispatch on in-stock items
  • Shipping from only $11.90
  • Click & collect available
  • Dealer-level MTA workshop
  • Expert tuning, upgrades, and servicing
  • Visit us: 15a parkway drive, Rosedale, Auckland
  • Open 6 days

Harrys Euro

150+ Brands · 30,000+ Performance Parts

Proudly Serving Kiwi Drivers for Over 9 Years
Store & Workshop
Workshop

Parts + services, under one roof

Shop performance parts in-store or online, then have them fitted and tuned by the same team. No referrals, no second trips.

Performance

Dealer-level workshop, MTA assured

Fully equipped to support late-model European vehicles — diagnostics, servicing, and performance builds done right.

Parts

Built for real-world performance

We fine-tune high-performance machines to suit how you actually drive.

Happy Customers

4.8
Based on 146 Google reviews
as of 01/05/2026
×

Follow Our Journey

Live build updates, event coverage, and behind-the-scenes — on Instagram.

Follow Us on Instagram ↗