Useful Advice

The Real Cost of Cheap Aero Parts โ€“ What Youโ€™re Not Told

Carbon fibre car aero parts including splitters, and side skirts laid out next to a modified sports car

Intro: Cheap Isnโ€™t Always Cheaper

A low-cost carbon fiber front splitter from an online marketplace might seem like a great deal. The photos look convincing, the price is low, and it promises a bold transformation for your build.
But what many car enthusiasts find is that these parts come with hidden costs โ€” not just in money, but in time, fitment issues, and long-term quality problems.

In this guide, we break down the true cost of budget aero parts and explain why choosing reliable, specialist brands makes all the difference.

1. Fitment Issues That Cost You Time and Money

One of the most common issues with unbranded or low-cost aero kits is poor fitment. Whether itโ€™s a front splitter that doesnโ€™t sit flush or a diffuser that requires trimming, poor fitment results in extra workshop time, frustration, and an unfinished look.

Common problems include:
– Misaligned or missing mounting points
– Gaps along the bumper or valance
– Needing drilling or cutting to install

Quality kits from specialist suppliers or brands are designed to match the original bumper lines, use OEM-style mounting, and require minimal adjustment.

2. Materials That Donโ€™t Match the Label

Not all carbon parts are made the same. Some use fiberglass or plastic with a carbon-effect print. Others are carbon-skinned over heavier composite cores.

Risks with budget materials:
– Excess weight (which reduces performance)
– Cracking or warping over time
– Fading, yellowing, or bubbling from UV exposure

High-grade carbon fiber parts โ€” such as dry carbon fibre โ€” are lightweight, stronger, and finished with UV-protected coatings for longevity.

3. Unstable Aero = Safety Risk at Speed

Aero parts arenโ€™t just visual โ€” they change how your car behaves at speed. Poorly built or badly mounted parts can create unpredictable airflow or even detach on the motorway.

What to watch out for:
– Flimsy brackets or no hardware at all
– Non-reinforced composite edges that flex
– No testing or vehicle-specific data

Specialist tuning brands invest in parts that are tested for both appearance and function. The goal isnโ€™t just to look fast โ€” itโ€™s to drive confidently at any speed.

4. Surface Finish That Doesn’t Last

The first impression might be glossy โ€” but after a few months, many budget aero kits begin to show wear. Cheap clear coats can fade, scratch easily, or peel after a few washes.

Signs of low-quality finishing:
– Uneven gloss
– Yellowing in direct sunlight
– Resin bubbles or surface warping

Premium brands offer UV-resistant coatings, deeper gloss, and consistent weave alignment. This not only enhances the look but protects your investment.

5. Long-Term Value and Resale Impact

Fitment, finish, and materials all influence how others perceive your build โ€” including future buyers. A well-installed, branded carbon kit can raise buyer confidence. On the other hand, poorly fitted or visibly low-quality parts might lower the perceived value of your car.

When resale matters, quality counts. Choosing parts from trusted names helps retain the professional appearance of your build over time.

6. No Returns, No Support

Many budget aero kits come with no return policy, warranty, or installation help. That means if it doesnโ€™t fit, arrives damaged, or fails within weeks โ€” you’re on your own.

ASM Tuning offer:
– Real product support
– Installation guidance
– Warranty protection and product guarantees

FAQs

Can budget aero parts ever be a good option?

For show-only vehicles or temporary installs, some basic kits may work โ€” but they rarely meet the durability or performance expectations of enthusiasts.

Whatโ€™s the difference between dry and wet carbon?

Dry carbon is lighter and stronger due to its construction method, we explain that in detail in our Wet Carbon Fibre Vs Dry Pre-preg Carbon Fibre Blog Guide.

Are high-quality kits worth the higher price?

In most cases, yes. They install cleaner, last longer, and improve the carโ€™s value and driving confidence.

Final Thoughts: Choose Smart, Not Cheap

We understand the appeal of low-cost upgrades โ€” but when it comes to carbon aero, quality matters. Poor fitment, unsafe materials, and short-lived finishes arenโ€™t worth the short-term savings.

Brands like ASM Tuning are focused on offering parts that fit, perform, and last โ€” with full customer support and a passion for proper tuning.

Explore our full range of aerodynamic and performance components designed for precision, fitment, and real-world gains

Browse the ASM Tuning Shop

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