With over 30 years of cumulative knowledge of design, manufacturing, mechanical and automotive experience, Flow Designs strives to bring fresh and innovative ideas to this industry, by exploring new manufacturing processes and recycled materials to become market leaders. Utilising these attributes, Flow Designs has innovated its current product range by manipulating recycled composite thermoplastics into a new revolution in aero styling. We are now widely known and distributed internationally, providing our customers with high-quality products.
What is a Splitter Kit? A Splitter Kit is a custom-designed aerodynamic add-on that mounts to the underside of your vehicle’s front bumper, side skirts, and rear bumper. At Flow Designs Australia, our Splitter Kits are built for durability and style, enhancing your car’s appearance while providing protection against road debris. Perfect for daily drives or spirited runs, it’s a must-have for aesthetic upgrades and added protection.
Front Lip Splitters
Our Front Lip Splitters attatch to the OEM Bumper of your car for added aggression, strength and a barrier between your bumper and the ground to protect your car from the rough road surfaces.
Our Side Skirt Splitters attatch to the OEM Side Skirts of your car for added aggression, strength and a barrier between your bumper and the ground to protect your car from the rough road surfaces.
Our Rear Diffuser and Spats attatch to the OEM Rear Bumper of your car for added aggression, strength and a barrier between your bumper and the ground to protect your car from the rough road surfaces.
Our Optional Accessories like Winglets, Extensions and more give added aggression and width to your car, Bolting onto our Splitter Kit with full adjustability and stacking to personalise your car.
Our two unique finishes offer a consistent match to your vehicles OEM materials and finishes, leaving you with a seamless and pristine look. Our gloss finish offers a more premium appeal with a high reflective finish, compared to our Textured finish that is scratch resistant and durable for easier maintenance.
Premium Reflective
Gloss Finish
Scratch Resistant
Texture Finish
How are our products made?
Step One
Examine the Car
The production process begins with a thorough walkaround inspection of the vehicle to assess its overall shape, underbody layout, and any unique characteristics that may impact the design and installation of the splitter kit. During this stage, our team identifies potential challenges, irregularities, and variations that may affect fitment. This detailed evaluation helps determine the specific requirements for the kit—such as whether custom chassis mounts, specialized brackets, or unique hardware will be necessary. Every aspect is carefully considered to ensure the final product offers a precise fit, uncompromised functionality, and seamless integration with the vehicle's factory lines.
Step Two
Project Preparation
The next phase is the design and development of the splitter components. Using insights gathered during the initial inspection, the designer begins conceptualizing a splitter that complements the car’s aesthetic while meeting functional and structural requirements. This includes carefully considering the shape, size, and contours to ensure optimal fitment and visual integration with the vehicle's existing lines. A rough prototype is then created using a specialized development material, allowing the team to conduct a physical test fit directly on the car. This hands-on step is crucial for evaluating proportions, clearance, and potential mounting points, and it serves as the foundation for further refinement before final production begins.
Step Three
Creating Product Forms
With the design finalized, the process moves from concept to physical realization. Using the approved design data, our team begins creating precise product forms—three-dimensional representations of each individual component in the splitter kit. These forms are carefully developed to capture every curve, angle, and detail of the original design, ensuring that each piece is both visually accurate and functionally sound. This step is critical in translating the digital model into a tangible format that can be used for further prototyping, testing, and eventual production, maintaining the integrity and quality Flow Designs is known for.
Step Four
Product Testing
Once the prototype components have been formed, the process moves into the product testing phase. Each part is rigorously assessed for fitment, strength, and overall functionality on the vehicle. The splitters are mounted and evaluated under real-world conditions to identify any issues with alignment, clearance, or structural integrity. This stage also involves testing the hardware and mounting systems to ensure secure installation and long-term durability. If necessary, refinements are made to the design or mounting points to guarantee a perfect balance of aesthetics, performance, and safety. Product testing is a crucial step in upholding the high standards of quality and precision that Flow Designs is known for.
Step Five
Final Evaluation
The final evaluation marks the last step before a splitter kit is approved for production. The complete prototype is reinstalled on the vehicle and thoroughly checked for fitment, design accuracy, and overall finish. The team ensures all components align correctly, are securely mounted, and integrate seamlessly with the vehicle. Once the product meets Flow Designs’ standards for quality and performance, it’s approved for full-scale manufacturing.
Step Six
CNC Processing
With the design finalized, the process moves to CNC testing, where an initial cut is performed using our in-house CNC machinery. This test ensures that the toolpaths are optimized for precision, material integrity, and cutting efficiency. During this stage, we evaluate the accuracy of the cut, adjust speeds and tooling if necessary, and make refinements to streamline the process for large-scale production. Any changes are implemented to improve consistency, reduce waste, and increase overall manufacturing efficiency—ensuring each part is produced to Flow Designs’ high standards with maximum productivity.
Step Seven
Securing and Packaging
Once all components have passed final checks, they move into the securing and packaging stage. Each splitter piece is carefully cleaned, inspected one last time, and protected with durable packaging materials to prevent damage during transit. Hardware and fitting instructions are included, and all items are securely packed into custom-sized boxes to ensure safe and efficient delivery. This attention to detail ensures that customers receive their Flow Designs kit in perfect condition, ready for installation straight out of the box.
Step Eight
Creative Campaign and Launch
With production complete, the focus shifts to the creative campaign and product launch. Our media team captures high-quality photography and videography to showcase the splitter kit's design, fitment, and unique features across a variety of platforms. Carefully curated content is then used to build anticipation and drive engagement through social media, email marketing, and our official website. Launch assets are strategically timed to align with market demand and audience interest, ensuring the product reaches the right customers at the right time. This final step not only highlights the craftsmanship behind each kit but reinforces the Flow Designs brand as an industry leader in automotive styling solutions.
Detailed Installation Guides
All of our splitter kits come with an easy mounting solution to make installation effortless, allowing you to drive around in your new kit in no time. With our helpful instructional videos we break down the process making it even easier to assemble yourself.
Our Flow Designs Splitter Kits aren't just any ordinary Kit, we custom make everything down to the bone, front custom stainless steel hardware, to custom chassis mounts for unbeatable strength, all to back our 10 Year Warranty.
Unbreakable Finishes
Unbreakable Finishes
We offer two premium finishes to suit different styles and uses:
Gloss Black - High-shine, premium look ideal for modern and Euro vehicles
Textured Black - Scratch-resistant and durable, great for track use and easy maintenance
Both are designed to match OEM materials for a clean, seamless fit
Our two unique finishes offer a consistent match to your vehicles OEM materials and finishes, leaving you with a seamless and pristine look.
Our gloss finish offers a more premium appeal for those with European and modern day vehicles with a high reflective finish, compared to our
Textured finish that is scratch resistant and durable for those wishing to track use their car and have easier maintenance.
Stainless Steel Hardware
Stainless Steel Hardware
We use premium stainless steel hardware built for long-term durability:
Rust and corrosion-resistant for all-weather reliability
Custom-engineered brackets designed for strength and stability
Built to last over 10 years, even with heavy use
High-quality materials ensure performance without compromise
We use only custom made, premium-grade stainless steel for all our hardware, ensuring exceptional durability and resistance to rust and corrosion.
Each component, from the smallest screw to the mounting brackets, is meticulously designed and manufactured to withstand the test of time.
Our custom-engineered brackets and mounting hardware are specifically crafted to provide maximum stability and strength, guaranteeing that your parts hold up over a full 10 years or more in any conditions.
By focusing on quality materials and thoughtful design, we deliver parts that not only look great but also stand up to heavy use without compromising performance.
Flow-Lock Technology
Flow-Lock Technology
Diffuser Fins without fasteners.
Our Flow-Lock mounting system keeps diffuser fins secure without the need for fasteners or messy brackets:
Snap-lock system for quick, tool-free installation
Clean and seamless finish with no exposed hardware
Durable design that won’t break or shift over time
Eliminates the need for brackets or visible fasteners
Our Flow-Lock mounting system snaps securely into place, delivering a clean, seamless finish—no messy brackets, no visible fasteners, and no risk of failure.
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Chassis Mounting
Chassis Mounting
Chassis-Mounted Brackets – Built for Strength & Stability
Custom-designed metal brackets mount directly to the vehicle’s chassis.
Engineered through extensive testing to maximise structural support.
Designed to distribute load to the strongest points of the vehicle.
Reduced flexing, sagging, or detachment over time.
Keeps the splitter performing and looking as intended, long-term.
Some of our front splitters feature custom-designed metal brackets that mount directly to the chassis. These brackets aren’t just an afterthought — they’re the result of extensive testing and design refinement. By distributing load across stronger structural points of the vehicle, they significantly improve the strength and stability of the splitter, especially at high speeds or under stress. This ensures your splitter stays firmly in place, maintains its shape, and performs exactly as intended.
Fully Customizable
Fully Customizable
Customisable Styling with Winglets & Extensions
Flow Designs splitters already enhance vehicle individuality — but we take it further.
Add Adjustable Winglets or Front Extensions to personalise your setup to your exact taste.
Perfect for creating a wider, more aggressive stance to match your build.
Fully modular design lets you choose how subtle or bold you want to go.
We engineered the first bolt-on system that integrates directly with our splitters.
No messy L-brackets — just a seamless, purpose-built solution.
Pre-installed brass threads allow for easy adjustments using only an allen key.
Having a Flow Designs splitter on your car automatically adds to its uniqueness - but we wanted to push it one step further because we know our customer base is about automotive customisation and styling.By offering Winglet and Front Extensions to our various splitter sets and designs, we allow you to push the boundaries of custom auto styling to whatever suits your taste.
Need a more aggressive splitter to match the the wide stance of your ride? No problem, add a Winglet Extension and you can choose exactly how wide you want to take it.
Again with simplicity and the customer in mind, we are the first to create an integrated bolt-on system that specifically pairs with our splitters - we don't just throw on a winglet or hold it up with an L-bracket. Our pre-installed brass thread gives you the flexibility to easily bolt-on and adjust the extensions and winglets with just an allen key.
The First Unbreakable Splitter
We're known worldwide as the manufacturer of splitters that don't crack, and we are so sure of this so we back all of our Splitters with a 10 YEAR Warranty, which we are sure you will never use.
Level up your Nissan S15 with the bold new Flow Designs Splitter Kit, Pair it with our Extensions and Winglets for the perfect blend of aggressive styling and everyday drivability.
S15 / 200SX Aero Rear Pods/Spats V3 (Pair)
$184.00 AUD
S15 / 200SX Aero Side Skirt Splitters V3 (Pair)
$495.00 AUD
S15 / 200SX Aero Front Lip Splitter V3 (For Aero Front Bar)
From $484.00 AUD
S15 / 200SX Front Lip Splitter Extensions (Pair - For Standard Front Bar)
I’m really happy with my front spoiler. The quality is really nice, and it’s definitely great value for the price. I’m very satisfied with my purchase.
I also want to mention the customer service team. I contacted them by email to get some more information, and they responded very quickly to all of my emails. The communication was excellent.
The spoiler was also packaged and delivered very nicely, with no scratches or damage at all. Everything arrived in perfect condition.
Thank you guys for the great product and excellent service! I really recommend you to anyone looking for quality car parts. 👍
I also have a small suggestion: I couldn’t find side skirts or front splitter wings suitable for a 2014 Subaru BRZ / Toyota 86. If you ever make these parts for the 2014 model, I would definitely be interested in buying them too! 😁
Once again, thank you! Keep up the great work! 🙏
My order came so quick! Definitely hard to install if you’re new to this sort of thing so I’d recommend a second pair of hands, especially on the side skirts. But looks so good once done. So happy with how it looks!
Awesome Product
Absolutely happy with the i30 N Hatch PDE V6 FL2 2025+ Side Skirt Splitter Winglets. The quality is excellent, they look fantastic on the car, and they give the side profile a much more aggressive and finished appearance without being over the top.
The fit and finish are spot on and they really complement the styling of the i30 N. Installation was straightforward and the end result looks great.
Very happy with the purchase and would definitely recommend these to other i30 N owners. Excellent product! ⭐⭐⭐⭐⭐
Bought the front splitter then the side skirts…. Really great quality, strong and easy to fit! Saving to do the rear diffuser next ! Great to be able to buy a product made in OZ 👍
I don't think I can express highly enough how stoked I am with Flow Designs and the splitter set. The kit itself is perfect, subtle yet aggressive and doesn't come at the sacrifice of function or practicality. The installation process was so straight forward that my mind was blown at the precise level of engineering and design put in to each piece. The customer service was 2nd to none with quick postage and helpful/efficient response to email queries. A very fair price that is worth every penny. Honestly could not fault Flow Designs at all, 5 stars in every aspect!! Keep up the awesome work guys!!!
FANTASTIC FITMENT!!! Guys I cannot stress enough how good the quality is it’s thick, durable and super aesthetically pleasing. If you guys have a gr or brz I 110% recommend this product. Installation was super straight forward and the hardware was the cherry on top!!
Flow Designs splitters & diffusers are the preferred choice by aftermarket modifiers and tuners worldwide!
10 Year Warranty
Strong As F Warranty applies for all splitter products, as our splitters are shatterproof (excludes accessories).
Customer service
Our customer service team is here to help with any issues from installation to shipping.
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Jose Luis Mendoza Jr
Rear spoiler extension
Very happy with the look of the extension. Item definitely gives the car a way better look from the back. Item was packaged very well and arrived faster than expected. Instructions could use some work but their online video they provide does a great job at explaining the installation and make the process so much easier. Would definitely recommend.
Wanted a low profile, heavy duty lip splitter after breaking the cheap ones a couple times. This one was a bit pricey to get to USA because large tariff, which was as much as the shipping, but I’m very pleased the product. And it looks great!
