McLaren 720S Body Kit Guide — Everything You Need to Know Before You Buy

The McLaren 720S arrived with one of the most dramatic factory silhouettes of any production car in recent memory. Its dihedral doors, fighter-jet canopy cockpit, and sculpted aero bodywork made it an instant icon. So why would anyone want to change it?

The answer isn't that the 720S needs improvement — it's that aftermarket McLaren 720S parts allow owners to take an already extraordinary car and give it their own visual identity, sharpen its aerodynamic profile, or prepare it more seriously for track use. This guide walks through the main body kit options available for the 720S and what to consider before buying.

Understanding 720S Aerodynamics — Why It Matters for Aftermarket Parts

The 720S was engineered with aerodynamics as a primary design constraint, not an afterthought. The body's complex surfaces — including the flying buttresses, active rear wing, and front-end inlet channels — are all functional. This means any aftermarket bodywork needs to be designed with an understanding of how the 720S actually manages airflow, not just how it looks.

Poorly designed aftermarket parts can disrupt front-end downforce, interfere with cooling, or create aerodynamic imbalance at high speed. Quality aftermarket McLaren 720S body parts are engineered around the factory aero platform, enhancing rather than disrupting it.

Front Splitter and Lip Upgrades

The 720S front end is already aggressive, but a carbon fiber splitter extension takes it to another level. A well-designed front splitter for the 720S sits below the factory bumper line and extends outward, increasing front downforce and giving the car a visibly lower, wider stance at the front.

The best options are constructed in dry carbon fiber for maximum strength-to-weight ratio. Look for units with a polished inner layer — on a car with the 720S's visual drama, the underside detail matters as much as the top surface.

Side Skirts and Rocker Panels

Side skirt extensions on the 720S serve a dual purpose: they visually connect the front and rear aero elements, and they manage airflow along the car's flanks to reduce turbulence entering the rear intakes. A full carbon fiber side skirt set transforms the mid-section of the 720S and is one of the most impactful single upgrades for the car's overall presence.

Rear Diffuser Upgrades

The 720S rear diffuser is a critical aerodynamic component. The factory unit is well-engineered, but aftermarket carbon fiber diffusers take the visual drama further with more aggressive fins, deeper channels, and exposed carbon weave that contrasts beautifully with the body colour.

A quality 720S carbon diffuser should integrate precisely with the factory bumper's lower section and work symmetrically around the twin-exit exhaust arrangement. Any gaps or misaligned edges are both visually unacceptable and aerodynamically detrimental on a car of this calibre.

Rear Wing Options

The 720S's active rear wing is one of its defining features — an automatically deploying unit that adjusts angle based on speed and braking input. Aftermarket fixed rear wings replace this active system and are typically chosen by owners building dedicated track cars where maximum downforce at a fixed angle is preferred over the versatility of the active system.

For road cars, carbon fiber swan-neck wing conversions that complement the factory wing profile are available and add significant visual drama without sacrificing active functionality.

Full Wide-Body Kits

For owners who want to make the most comprehensive visual statement, full wide-body conversion kits for the 720S are available. These typically include extended front and rear arches, revised front bumper assemblies, new side skirts, and a revised rear valance — transforming the already dramatic 720S into something that looks genuinely purpose-built for competition.

Wide-body kits require professional installation and in some cases modification to the underlying body structure. They are not bolt-on upgrades — factor installation time and cost into your budget alongside the part price.

Buying McLaren 720S Aftermarket Parts — What to Look For

The 720S's complex body geometry means fitment tolerances are tighter than on conventional production cars. A panel that almost fits is useless on a McLaren — the gaps, surfaces, and angles are visible from multiple angles simultaneously. Only buy from suppliers who can demonstrate model-specific fitment verification.

At Velocity Car Parts, every McLaren 720S aftermarket part in our catalog is verified for fitment before listing. Our fitment guarantee covers every order — if it doesn't fit as described, we sort it immediately. Browse our full McLaren 720S collection and find the upgrades your build deserves.