Side skirts lip Mansory for Mercedes-AMG S63E

Mansory Side Skirts Lip for Mercedes-AMG S63E

Running the full length of the door sill from the trailing edge of the front wheel arch to the leading edge of the rear, the Mansory side-skirts lip is the longest single carbon part in the kit and the one that converts the underbody from two separate aero zones (front-axle, rear-axle) into one continuous, sealed corridor. The W223 long-wheelbase chassis already gives the S 63 E PERFORMANCE a slab of side panel that no shorter wheelbase saloon possesses; with 4MATIC+ AWD distributing 802 hp and the 13.1 kWh HV battery pack hung between the axles, the underbody pressure has to be funnelled rather than allowed to vent sideways. This part performs the funnelling. It belongs in the parent kit Mansory Carbon Fiber Body kit set for Mercedes-AMG S63E.

Construction & Materials

A long, slim part has its own engineering challenges — torsional twist during transport and during install, and bond-line stress at the door-shut interface. The Mansory layup addresses both with a beam-stiff inner structure and a flexible outer skin.

• 3K twill A-side, biased so the diagonals run with the AMG character line
• Inner core of unidirectional carbon spars resisting twist along the part's length
• Vacuum-bag autoclave cure, 125 °C, multi-axial fibre orientation
• Wall thickness 2.0–2.6 mm in the show face, 4.5 mm at the upper return
• Net dry weight 1.7–2.1 kg per side (left/right symmetric mouldings)
• OEM-style clip pattern using factory rocker plastic-clip points
• 3M VHB 5952 along the upper return, no drilling required
• UV-stable 2K clear lacquer, gloss / satin / matte options

Design & Visual Function

The aero brief is to seal the rocker-to-floor seam against side-spillage. On the OEM W223 the under-rocker zone vents air sideways at speed, especially as the saloon enters a curve and the boundary layer separates from the floor near the leading edge of the rear arch. The Mansory lip pushes the rocker plane outward by 12–18 mm and downward by roughly 22–28 mm, which forms a short skirt-fence that pins the boundary layer along the floor. With the 4MATIC+ AWD system putting torque to all four corners and the AIRMATIC keeping the body level under throttle, the practical benefit is a steadier wheel-load delivery on long sweeping curves rather than a single-number downforce gain.

Aesthetically the lip lengthens the visible side surface of the saloon by drawing a fine carbon shadow line from arch to arch. The 3K twill is biased so the kinetic suggestion runs forward — viewed from the front three-quarter the carbon appears to pull the rear arch forward toward the front, which makes the long-wheelbase proportion read as athletic rather than coachbuilt-static. The shadow line catches the AMG arch-shoulder shut-line and unifies the two visual planes the saloon already has (door surface and rocker) into a single long carbon streak.

Owners specifying the AMG Night Package usually go for satin lacquer — the lip then disappears into the AMG blacked-out trim and reads only as a depth gradient rather than as a separate part.

Compatibility & Fitment

Engineered for the Mercedes-AMG S 63 E PERFORMANCE (W223), 2023+, saloon. Both LHD and RHD cars use the same mouldings — the part is mirror-symmetric across the centreline. AMG Night Package and AMG Carbon Package cars are supported. Factory AIRMATIC ride heights are the design target; the lip extends 22–28 mm below the OEM rocker plastic, so cars set permanently to AIRMATIC's lowest fixed-height mode or carrying aftermarket lowering kits should verify the kerb-clearance angle before final bonding. Factory 20" and 21" AMG wheels clear the lip without issue; aggressive negative-offset wheels with extreme stretch tyres should be verified on a static fit before commitment. Door-shut alignment is preserved — the lip sits below the door bottom edge and does not change the door-to-rocker shut-line pattern.

Installation & Reversibility

Plan 90–120 minutes per side on a hoist; two sides require roughly half a day in total when the surfaces are wax-prepped properly. Required tools: 8/10 mm sockets for any rocker-trim removal, plastic trim picks, isopropyl alcohol, 3M Cleaner-Primer 94, low-tack masking tape, soft rubber-faced roller for VHB seating. Workflow: clean the OEM rocker plastic to bare substrate, apply primer to bond pads, align the lip from front-arch lip backward (reference the OEM rocker shut-line, not the door bottom), engage the OEM clip pattern, then roll the VHB seam home. Cure for 24 hours before high-pressure wash. Reversibility is genuine — no drilling and no permanent bonding to painted panels — but the OEM rocker plastic should not be re-used on a second car since the clip points may have walked under load.

Pairing within the Mansory Mercedes-AMG S63E programme

The skirts lip pairs naturally with the Front splitter with LED DRL and the Diffuser to close the underbody pressure loop, and with the Sport outtake for front fender to vent the front wheel-arch hot air sideways into the rocker shadow rather than into the leading-edge of the rocker bond.

Maintenance & Durability

Side-skirt lips collect more salt and brake dust than any other part of the kit because of their length and proximity to the front and rear wheels. Wash twice as often as the upper body in winter, with pH-neutral shampoo and a separate mitt that does not touch the upper paint. Avoid the temptation to power-wash the upper VHB seam — even at 30 cm distance, a 150 bar lance directed parallel to the bond will eventually wick water under the tape. A short sealing ceramic on the upper return every six months is the easiest preventative step. Stone chips on the lower edge are inevitable; a clear UV epoxy applied within seven days arrests the chip before it propagates under the lacquer. Avoid abrasive sponges — even brake-dust chemicals safer than acid wheel cleaners can leave a haze on lacquered carbon if dwell exceeds 90 seconds. Expected cosmetic-finish lifespan is 7–10 years assuming all-season use.

Lead Time & Warranty

Lead time 3–5 weeks because the part is one of the longest in the kit and demands an extra autoclave bake cycle for dimensional stability. Custom finishes add roughly one week. Warranty: 12 months against manufacturing defects — delamination, voids, fitment, clear blistering — counted from delivery. Damage from kerb impact, stone propagation, or aftermarket lowering is not covered. Each side ships in a long, foam-lined coffin carton with end-stiffeners; the carton itself is dimensioned to fit through a domestic doorway because the parts are too long to handle in their shipping crate alone.

FAQ

Q: Are the LHD and RHD lips different parts?
A: No. The mouldings are mirror-symmetric, so the same part code fits both LHD and RHD AMG S 63 E PERFORMANCE cars.

Q: Will the lip clear an AIRMATIC sport-style ride height?
A: Yes at the standard sport-style ride height the AIRMATIC system selects in AMG Sport+/Race modes. Verify static clearance if the car is set lower than that or if aftermarket sensor relocation is fitted.

Q: Does the lip work with factory 21" AMG wheels?
A: Yes. The arch-leading edge of the lip is shaped clear of factory 20"/21" AMG wheels with their factory tyres. Aggressive aftermarket offsets should be checked statically before bonding.

Q: Does it change the door-shut line or door-bottom seal?
A: No. The lip sits below the OEM door-bottom seal plane and does not interfere with the door-shut pattern.

Q: Can the lip be installed without removing the rocker plastic?
A: It can in theory, but the recommended practice is to remove the OEM rocker garnish briefly to clean and prime the bond pad. Fully on-the-car installs are possible but VHB longevity drops if substrate prep is compromised.

Q: How does the lip behave on long autobahn cruise versus around-town speeds?
A: At low speeds it is a visual element only — boundary-layer separation is not a meaningful concern below 80 km/h. From 130 km/h upward the lip becomes functional, with the most measurable steady-state benefit between 200 and 270 km/h where the underbody pressure delta peaks for a saloon of this kerb mass.

Q: Does the AMG biturbo V8's exhaust heat reach the lip surface?
A: No. The four-exit AMG quad-tip exhaust exits well aft of the rear arch, and the rocker zone is shielded from any radiated exhaust heat by the OEM thermal blanket on the catalysts and centre pipework.

Pair with the front-splitter LED DRL and the diffuser to lock the underbody pressure zone end-to-end, and consider matching the rocker treatment with a satin-finish brake-cooling lip on the front fender to keep the side surface visually disciplined. To configure your build, message WhatsApp +44 7488 818 747 or write to [email protected].