Audi S5 B9 Body Kits & Styling

Audi S5 B9 body kits and styling buying guide

The Audi S5 B9 responds particularly well to relatively subtle exterior styling changes, with front splitters, side skirt extensions and rear styling parts giving the car a lower and more aggressive appearance without replacing the complete factory body kit.

Correct fitment is important, however, because the range covers:

• Pre-facelift models
• Facelift models
• Coupe models
• Sportback models
• A5 S line and S5-specific applications

Always check the exact model listed on the individual product page before ordering.

Pre-facelift versus facelift S5 B9 styling parts

The front and rear bumper shapes are different between the pre-facelift and facelift Audi S5 B9.

This means front splitters, rear splitters, valances and other bumper-mounted components should not be assumed to interchange between the two versions.

Before ordering, compare:

• The year and generation listed on the product page
• Your existing front or rear bumper
• The shape of the vents and lower grilles
• The product photographs against your own vehicle

If your bumper does not match the one shown in the product photographs, stop and confirm fitment before ordering.

Coupe versus Sportback fitment

Some styling components are shared between the S5 Coupe and Sportback, particularly where the front bumper is the same.

Other components – especially side skirts and rear styling parts – can be body-style specific.

Do not assume that a rear or side component for a Coupe will automatically fit a Sportback simply because both cars are S5 B9 models.

Always use the exact Coupe or Sportback fitment stated on the product listing.

V1 versus V2 front splitters

Maxton offers several front splitter styles for the S5 B9, including V1, V2 and Street Pro designs.

The numbered versions are primarily different visual designs.

For example, the pre-facelift range includes the Maxton Design V1 front splitter, while facelift cars have separate options such as the facelift V2 front splitter.

Choose whichever style you prefer rather than assuming V2 is automatically an upgrade over V1.

Do Audi S5 B9 front splitters require drilling?

Yes.

We recommend properly drilling and mechanically securing the splitter using suitable nuts and bolts.

Front splitters experience considerable airflow and load at motorway speeds, so correct fitting is important.

We would not rely on double-sided tape or adhesive as the primary means of securing a front splitter.

Why does a front splitter need to be securely mounted?

A poorly secured splitter can work loose or detach at speed.

This can:

• Damage the splitter
• Damage the front bumper
• Damage other parts of the vehicle
• Create a hazard for other road users

Take your time during installation and follow the supplied fitting instructions.

Street Pro versus standard Maxton front splitters

The standard Maxton and Street Pro ranges offer slightly different styling approaches.

Standard Maxton ABS parts are generally supplied in a gloss-black finish, while Street Pro components are generally matte black and tend to have a more aggressive motorsport-inspired appearance.

The Street Pro front splitter is a good option if you prefer this more purposeful matte finish.

Make sure you consider the finish of the other styling parts already fitted to your car if you want everything to match.

Audi S5 B9 side skirt extensions

Side skirt extensions visually lower the side profile of the S5 and help connect the appearance of the front and rear styling parts.

There are separate products for different body styles and generations, including Coupe, Sportback and facelift-specific versions.

Always order the exact version listed for your vehicle.

Do S5 side skirt extensions require drilling?

Yes.

We recommend mechanically securing the side skirt extensions rather than relying on adhesive.

These are long components that experience considerable airflow while driving, so secure fixing along their length is important.

Before drilling:

• Test-fit both sides.
• Check they sit at the same height.
• Make sure the front and rear edges line up correctly.
• Mark all mounting positions carefully.

ABS side skirts versus fibreglass side skirts

Most Maxton styling products in this collection are ABS parts that arrive with a finished surface and can normally be fitted without painting.

The Maxton Design fibreglass S5 side skirts are very different.

These are handmade fibreglass body components and should be treated as a body-shop product rather than a simple ready-to-fit accessory.

Fibreglass preparation

Before installation, expect the fibreglass parts to require:

• Sanding
• Priming
• Possible minor shaping or adjustment
• Painting
• Professional final fitting

We recommend having these prepared and installed by a body shop familiar with aftermarket fibreglass panels.

Small imperfections or marks in an unfinished fibreglass component are not necessarily defects because the part is designed to be prepared before painting.

Rear side splitters

Rear side splitters fit around the lower outer sections of the rear bumper and work particularly well when combined with matching front and side styling.

Pre-facelift and facelift versions are available, so make sure you select the correct one.

These should also be mechanically secured rather than simply bonded into position.

Audi S5 B9 canards

The Maxton Design front bumper canards add another styling detail around the outer sections of the front bumper.

These require drilling and mechanical fixing.

Because they are fitted as matching left- and right-hand pieces, take particular care to position them evenly.

Measure both sides before drilling rather than positioning each piece independently by eye.

Pre-facelift S5 rear valance

The Maxton Design S5 B9 rear valance is a complete replacement lower valance rather than a simple piece that bonds over the factory part.

The original rear valance needs to be removed before the replacement component is installed.

This gives a much more substantial change to the rear appearance than a small splitter add-on.

Replacement rear valance versus rear splitter

It is useful to understand the difference before ordering.

Replacement rear valance

Removes and replaces the original lower bumper section.

This generally creates a more substantial visual change and requires more involved installation.

Rear splitter or diffuser add-on

Fits to the existing rear bumper or valance without replacing the complete original lower section.

This generally makes it a simpler modification.

Facelift central rear splitter

The Maxton Design central rear splitter for the facelift S5 Sportback is an add-on rather than a complete replacement valance.

It fits to the existing rear bumper area and adds a more aggressive lower section without requiring the entire factory valance to be replaced.

Make sure you note the Sportback and facelift-specific fitment before ordering.

Street Pro rear diffuser

The Street Pro range also includes a more aggressive rear diffuser option for the relevant S5 Coupe and Sportback models.

Street Pro parts are generally supplied in matte black, so they give a different appearance to the gloss-black standard Maxton range.

This can work particularly well when paired with other Street Pro components for a consistent finish around the car.

Gloss black versus matte black

Standard Maxton ABS

Most standard Maxton ABS styling parts are supplied finished in gloss black and can generally be installed as supplied.

Street Pro

Street Pro parts are generally supplied in matte black.

If you are mixing parts from the two ranges, bear in mind that the finishes will not match exactly.

Some owners deliberately mix them, while others prefer all styling parts to use the same finish.

Do Maxton ABS parts need painting?

Normally, no.

The standard finished ABS components can generally be installed in their supplied finish.

You can paint them if you specifically want:

• Body colour
• Satin black
• A custom colour
• A matching finish with other bodywork

If painting ABS, proper surface preparation and primer should be used.

Do fibreglass parts need painting?

Yes.

The fibreglass side skirts are supplied as unfinished bodywork components and require preparation before final painting.

They should not be treated in the same way as the ready-finished gloss-black ABS products.

Test-fit all styling parts before drilling

We strongly recommend test-fitting every part before making any permanent changes.

Before drilling, check:

• Pre-facelift or facelift fitment
• Coupe or Sportback fitment
• Bumper shape
• Left-to-right alignment
• Clearance around existing bodywork
• That all edges sit correctly against the car

If a part clearly does not follow the shape of your bumper or bodywork, stop before drilling and double-check the fitment.

Leave the protective film on while checking fitment

Where an ABS part arrives with protective film, leave it in place while test-fitting the component.

This protects the finish from scratching while you position it and also allows you to confirm that you have ordered the correct part before installation.

Only remove the protective film once you are happy that the part is correct and ready to fit.

Best complete Audi S5 B9 styling setup

A simple complete styling package would normally consist of:

• Front splitter
• Side skirt extensions
• Rear side splitters or rear diffuser

The exact combination comes down to personal preference.

For a cleaner OEM-style appearance, the standard gloss-black Maxton range works well.

For a more aggressive look, the Street Pro range provides a more track-inspired appearance and matte-black finish.

Are these styling or performance modifications?

The products in this collection are primarily styling modifications designed to change the appearance of the Audi S5 B9.

Choose the components based on the look you want and the exact fitment of your vehicle.

Frequently asked questions

Do facelift S5 splitters fit pre-facelift cars?

No. The bumper shapes are different, so always order the correct generation.

Are Coupe and Sportback styling parts interchangeable?

Some front parts can be shared where the bumper is the same, but side and rear components may be body-style specific. Always check the individual listing.

What is the difference between V1 and V2?

The difference is primarily styling. Choose whichever design you prefer.

Do S5 front splitters require drilling?

Yes. We recommend properly drilling and mechanically securing them using suitable nuts and bolts.

Can I stick the front splitter on?

We would not rely on adhesive alone. The front splitter should be securely mechanically mounted.

Do side skirts require drilling?

Yes. Side skirt extensions should be securely mechanically fixed.

Do rear side splitters need drilling?

Yes. We recommend mechanical mounting rather than relying purely on adhesive.

Do the canards require drilling?

Yes. They should be mechanically fixed and carefully aligned on both sides.

Does the pre-facelift rear valance replace the factory one?

Yes. It is a complete replacement lower valance rather than an add-on.

Does the facelift central rear splitter replace the original valance?

No. It is an add-on to the existing rear bumper and valance area.

What finish are standard Maxton parts?

The standard ABS range is generally supplied in gloss black.

What finish are Street Pro parts?

Street Pro components are generally supplied in matte black.

Do standard ABS parts need painting?

No. They can generally be fitted in their supplied finish.

Do the fibreglass side skirts need painting?

Yes. They require sanding, priming and painting and may require some final shaping or adjustment during installation.

Should the fibreglass side skirts be professionally fitted?

We recommend using a body shop familiar with aftermarket fibreglass bodywork.

What is the most important thing to check before ordering?

Make sure the product is listed for the correct S5 generation and body style. Check pre-facelift versus facelift and Coupe versus Sportback before purchasing.

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