Side skirts lip Mansory Carbon for Lamborghini Aventador S

Mansory Carbon Side Skirts Lip for Lamborghini Aventador S

The Mansory Carbon Side Skirts Lip is the long, low strake that runs along the rocker beneath either the OEM Lamborghini side skirt or the Mansory replacement skirt on the Lamborghini Aventador S (LP740-4 S). Its job is the underside line — the eye-level edge a bystander reads when the car rolls past at walking pace, and the airflow boundary the side floor sees at speed. Within the wider Mansory Body Kit for Lamborghini Aventador S programme this is one of the quieter carbon parts on paper, but on the car it does heavy lifting: it visually drops the rocker, hides the gap between sill and asphalt, and lengthens the wheelbase to the eye. Naturally aspirated 6.5 V12, scissor doors, rear-wheel-steering, aluminium-CFRP monocoque, lower-side exhaust outlets — every cue around it is dramatic, and the rocker line has to keep up.

Construction & Materials

Side skirt lips live two centimetres off the tarmac — gravel-blasted, kerb-kissed, steam-cleaned every wash. Mansory builds them to survive that life: laminate runs thicker, the resin system flexes slightly under impact rather than shatters.

Stack-up is twin-skin: outer cosmetic ply over a structural core that gives bending stiffness across the long span, then an inner ply that mates to the rocker through bonded mounts. Left and right are handed to follow the rising shoulder towards the rear haunch.

• 3K twill outer face, registered weave so left and right sills read as a mirrored pair down the body.
• Optional 2x2 plain weave or matte forged-look on request — forged is the most kerb-tolerant of the three for chip cosmetics.
• Autoclave prepreg cure for the show face; hand-laid local reinforcements at the mounting bosses where shear into the rocker is highest.
• Wall thickness 2.4–2.8 mm along the strake, building to 3.4 mm at the front and rear ramp tips where stone-strike is concentrated.
• Per-side mass roughly 1.4–1.7 kg depending on weave and lacquer build — call it 3 kg the pair.
• Bonded stainless threaded inserts on the inner face for mechanical fixings; methacrylate-compatible adhesive zones for bond-only sections that face the rocker monocoque flange.
• UV-stable two-pack clear lacquer with high film build — chosen specifically because the strake takes more sunlight at low altitude than upper body panels and yellows first if the lacquer is thin.
• Discrete underside drainage notches so trapped water from a washdown does not pool between the lip and the rocker.

Design & Visual Function

The Aventador S has a long hard body line above the rocker — the eye reads it as a single horizontal blade from the front wheel arch to the rear. Without a rocker lip the eye drops below that blade into a shadow gap, which on a low car with massive rear haunches makes the front feel taller than it is. The Mansory side skirts lip lays a second, lower horizontal line under the original. The two lines together compress the sill visually, and the car reads as if it is sitting on the asphalt rather than hovering above it.

From an airflow standpoint, the rocker on a mid-engined V12 is a useful working surface. Air spilling around the front wheel under hard cornering wants to wash outboard along the sill. A clean, slightly outward-cambered rocker lip helps that air stay attached along the side floor, then release cleanly into the rear diffuser feed rather than tumbling up into the rear wheel arch. On the Aventador S the lower-side exhaust outlets sit outboard of the rear wheel — keeping the air well-behaved along the rocker means less buffeting at the exhaust exit and a slightly cleaner note at the rear quarter window.

Then there is the scissor-door cut. The door swings up and outward; the bottom rear corner of the door describes an arc that ends close to the rocker. Mansory's lip is plotted so that the rear edge of the strake clears the door arc at all opening angles, and so that the visual gap between door bottom and lip is consistent front to back. You only notice the detail when it is wrong on a copy: the door drops, the lip is too tall, the eye sees a kink. On a correctly fitted Mansory lip the eye sees a continuous low blade with the door tucking neatly above it.

Finish choice is a real conversation. Lacquered weave gives the trophy-cabinet look and matches a fully-specced carbon programme — front lip, side skirts lip, rear diffuser, mirror caps all reading the same. Raw-look matte lacquer is more pragmatic on a part this exposed: kerb scuffs disappear into the texture, stone chips do not flash white in sunlight, and body paint stays the centrepiece. Owners running bright body colours often pair the matte sill lip with lacquered upper carbon — paint owns the high body line, carbon underlines it.

Compatibility & Fitment

Engineered for the Lamborghini Aventador S (LP740-4 S, 2017–2021), coupé and Roadster, both colour spec books and all factory wheel options. The lip mates to the lower edge of the OEM Lamborghini sill and also to the Mansory replacement side skirt where one is fitted — same mounting geometry. Pre-SVJ rocker geometry only; do not attempt fitment to SVJ chassis. The lower-side exhaust outlets sit aft of the lip's rear ramp, untouched. OEM jacking points stay accessible — the lip is shaped around them rather than over them. No effect on parking sensors, no interaction with the door arc, no contact with the front or rear wheel under any allowable steering angle.

Installation & Reversibility

Side skirts lip fitment runs three to five hours per side for an experienced installer working clean, longer on a first attempt. The lip is a long, slim part and small angular errors at the front mounting boss compound to large gap errors at the rear — measuring twice before committing adhesive is the rule. The car needs to be on a flat lift with both sills accessible at chest height; trying to do this on jack stands ends in pain.

The OEM rocker on the Aventador S is bonded into the aluminium-CFRP monocoque using methacrylate adhesive, which means surface chemistry matters. Mansory's installer pack specifies an adhesive that is compatible with that substrate and with the cured carbon laminate, plus a primer for any zone where bare CFRP weave has been opened up by abrasion or trimming. Mechanical fasteners through the bonded stainless inserts handle the structural load; adhesive seals the perimeter and prevents water ingress into the rocker cavity.

Workflow: lift the car, remove the front and rear wheels for clearance, dry-fit the lip and shim until front-to-rear gaps are consistent and the door arc clears. Mark mounting points, drill through the rocker flange where required, install threaded inserts. Mask, scuff the bond zones, prime, apply adhesive, set the lip, fasten, clamp, allow full cure overnight before driving. Reversibility is good — the strake comes off cleanly with adhesive softener and patient prying, and the rocker flange is left intact. Concours buyers can request an adhesive-only fitment on the OEM sill (no drilling), at the cost of slightly reduced kerb-impact tolerance.

Pairing within the Mansory Aventador S programme

The side skirts lip is the connecting piece between front and rear aero on the side of the car. It pairs naturally with the Air outtake cover (side skirt) directly above it — the two parts share the rocker zone and want the same weave and lacquer build to read as one continuous carbon strip on the side. Forwards, the strake's leading edge wants to flow visually into the Front bumper lip; specifying both at the same time lets the installer set ramp angles and ride heights so the eye traces an unbroken low line from front splitter through to the back of the door. Above and aft, the Air intake — side window in the C-pillar gives the upper body its own carbon punctuation — the lip handles the lower line, the side-window scoop handles the upper, and between them the painted body panel becomes the canvas.

Maintenance & Durability

Kerb impact is the single biggest threat. A drop-kerb at a steep angle, a parking block tucked too far forward, a forecourt lip — any of these can score the leading ramp. The good news is that the ramps are also the parts that absorb hits, and they are the most accessible to repair. A scuffed ramp on a lacquered weave is flatted and re-lacquered locally in a body shop in a couple of hours; a chipped ramp on matte raw-look can be touched in with matched matte clear and a fine brush.

Wash discipline matters because the strake catches the dirty water that runs down the rocker. Pre-rinse before any contact wash — grit on a sill cloth becomes sandpaper. Use pH-neutral shampoo, never alkaline wheel cleaner with overspray drifted onto the lip. Avoid ammonia-based glass cleaner near the carbon edges; it softens lacquer over time. Clay-bar twice a year, then a ceramic coating in the 9H range adds chip resistance without changing the weave's optical depth.

UV is a slow killer. The sill takes more reflected ground heat in summer than upper panels, and thin lacquer yellows at the leading ramp first. Mansory's high-build clear plus a ceramic top layer pushes that timeline out beyond the realistic ownership window.

Lead Time & Warranty

Lead time is typically four to eight weeks from order confirmation. Each pair is laid up against your chassis and finish choices — lacquer build, weave orientation, body-colour paint or raw carbon. The factory ships with installer documentation: torque values for the threaded inserts and the approved adhesive for the methacrylate-bonded rocker flange. Twelve months manufacturing-defect warranty. Kerb damage and stone-chip wear are not warranty events but repair cheaply through the same channels.

FAQ

Q: Will the lip clear the scissor door at full opening?
A: Yes — the rear edge of the strake is plotted against the door arc at maximum hinge angle. Shimming during dry fit is what guarantees the gap; the part is not designed to be fitted blind.

Q: Coupé and Roadster fit the same lip?
A: Yes. The rocker geometry is shared between the two body styles on the Aventador S, so the same pair of lips fits both. Roadster owners with a soft top stowed have no clearance interaction with this part.

Q: I drive on bad roads. Lacquered or raw weave?
A: Raw-look matte. Stone strikes do not flash white the way they do through high-gloss lacquer, and a chip in matte clear can be touched in by a careful detailer rather than going to a body shop.

Q: Does the lip change the lower-side exhaust outlet acoustics?
A: Not in any measurable way. The strake ends well forward of the rear outlet and does not enter the exhaust airflow. Some owners report a slightly cleaner note at the rear quarter at speed, which is a side-effect of tidier sill airflow rather than any change to the exhaust path.

Q: Can I fit it without drilling the rocker?
A: Yes, on request — an adhesive-only spec is available for owners worried about resale. Kerb tolerance drops slightly versus the bonded-and-fastened spec, so it is the right choice for garage queens and the wrong choice for daily drivers.

Q: What weight am I looking at the pair?
A: Roughly three kilograms of carbon for the pair, which is not a performance number — this is a visual and side-airflow part, not a weight-saving one.

Pair the side skirts lip with a front bumper lip and a side-skirt air outtake cover and the rocker zone of the Aventador S reads as a single resolved piece of design. To spec finishes, confirm fitment, or quote alongside other parts of the kit, message on WhatsApp +44 7488 818 747 or write to [email protected].