GT Mustang S550 FM Rear Spats (Pair)-Flow Designs

Name: GT Mustang S550 FM Rear Spats (Pair)-Flow Designs
Brand: Flow Designs
SKU: GLFM17SP-zzz10144021
Price: 290.0 NZD
Availability: InStock

by Flow Designs

$290.00

Material Finish

Gloss Black

Textured Matte Black (Scratch-resistant)

Rear Spat Winglets (Pair)

WITHOUT Rear Spat Winglets (Pair)

ADD Rear Spat Winglets (Pair)

Quantity

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 REAR BUMPER REMOVAL

Details

Complete the aggressive aesthetic of your Mustang S550 FM rear with our rear spats - known for their durability and strength. Installation does not require bumper removal! Our newly developed Mustang S550 FM range shares the same strength, durability and technology as our popular WRX, Golf GTI and Focus RS line up which is trusted by many enthusiasts. Pre-pressed brass fittings on the rear spats allow for installation of our adjustable Mustang S550 FM rear winglets (sold separately) to allow for further customisation to individual taste.

All our lip splitters have a 10 year warranty and are made from a thick polyethylene composite, making it the strongest product of its type on the market, watch our lip splitter stress test to see how durable our splitters are. Each splitter is model specific in its development and design to ensure perfect fitment. The entire production process is done is our Bayswater factory making us proudly Australian made and owned.

We offer fast Australia-wide and international shipping for all our products - join the worldwide Flow Family today!

GT Mustang S550 FM Rear Spats Kit Includes:

Mustang S550 FM rear spats
2 Flow Designs stickers
Fitting kit

GT Mustang S550 FM Rear Spats Material & Finish:

10mm thick polyethylene composite, bevelled edges
Finish available in gloss black, or scratch-resistant textured matte black
Others Who Own This Kit:

Ford Mustang S550 FM Splitter Kit

Install Instructions (PDF)

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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.

Dealer-level workshop, MTA assured

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

Built for real-world performance

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

Shanijah Taylor

Just wanted to share some love to Harry's euro and their team! Bought parts for my r32 and gti, they never disappoint. Love being part of the euro community in an ever so dominant jdm culture in New Zealand. Looking forward to bringing an rs3 in for tuning :)

Greg Davies

Great to have parts for my Range Rover so readily available in nz. Fast delivery and awesome quality products. Thanks guys!

Nick Ko

I took my BMW to get the downpipe installed. Harry's Euro has done an excellent job. I'm very satisfied with the quality of their work. The staffs are very nice. Highly recommended. 10/10

Sebastian Ramirez

I've been a loyal customer of Harry's Euro since 2017, and I can confidently say Scott and his team are the best in the game. Not only do they consistently offer the best prices, but the service is always top-notch. Scott is honest, transparent, and always takes the time to explain what’s going on with my car. Whether it's routine maintenance, unexpected repairs, or upgrades, I always know my car is in the best hands. Highly recommend to anyone looking for a reliable, expert mechanic!

Andrew Atkinson

Used Harry's Euro for years owning a Mk6R and now a Mk5 R32. Amazing service and delivery! R32 kit arrived today with some extra goodies! Pleasure to deal with the team!

Mark Barber

Hands down the best Euro shop in Auckland. They've looked after 2 builds of mine, and the parts, service and expertise has been top notch.

Marc Graham

Harry's Euros delivered platinum service from start to finish. The quality of the products is excellent, and the install experience was smooth and professional. If you want a lower cost acceleration boost ask Scott about a Pedal Box! Huge difference and very simple to use.

Quinn Ashby

Got some basic servicing and a Stage 2 transmission tune done today to match the ECU tune. The team was really helpful with information, communication via email, fit me in quickly, and offered fair, industry standard pricing for a specialised shop. Highly recommend, and I'll definitely be back!

Hayden Lawrence

Great service. Needed a replacement driver's side mirror glass for our old GTI. Harry's Euro had it in stock for a good price and shipped it next day. Very pleased with the transaction and will happily recommend and use them again.

SladeDaSlide

Been Working with Harry's Euro for almost 3 years now and I can highly recommend any auto-work or performance upgrades to be done by these guys. I've had my previous car and my current done by the team cheers to Scott and the boys for the work 🍻

Press & Media

Harrys Euro in the Media.

New Zealand's automotive publications have documented our work and expertise.

Euro Tuning Explained – Project R Part 3

NZPC · Project Series 31 December 2025

Euro Tuning Explained: How It Really Works — Project R, Part 3

In part 3 of a featured Golf R build series, NZ Performance Car visited the Harrys Euro workshop to explore the realities of Euro tuning. The article highlights our team's expertise, detailing the installation and custom ECU/TCU calibration of the Harrys Euro Stage 2 EA888.3 400 Package.

Read Full Article on NZPC ↗

View All Coverage on NZ Performance Car magazine ↗

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