Splitter for OEM engine bonnet Mansory Carbon for Mercedes-Benz AMG GT S Coupe

Mansory Carbon Splitter for OEM Engine Bonnet — Mercedes-AMG GT (C190)

The Splitter for OEM engine bonnet is the most surgical entry-point into the Mansory carbon programme for the C190 — a small, bolt-on carbon blade that mounts onto the existing factory AMG GT hood without replacing it. It sits within the wider Mansory Carbon Fiber Body kit set for Mercedes-Benz AMG GT S Coupe as the conservative bonnet option: owners who like the OEM line of the long C190 hood — and who don't want to commit to a full carbon panel swap — get a pre-preg carbon accent positioned around the heat-extraction louvre cluster that sheds heat from the M178 V8 BiTurbo's hot-V turbos. Same Panamericana grille below, same dry-sump V8 underneath, just a sharpened crease running across the leading edge.

Construction & Materials

Because it is an add-on rather than a structural panel, the splitter blade is built lighter and thinner than the full Mansory engine bonnets. Mansory laminates the part as a thin carbon shell with a foam or honeycomb core in the wider midsection so the blade stays rigid across the airstream without flexing at autobahn speeds. The blade is delivered finished from the factory; no paint prep is required unless the owner chooses to colour-match the underside.

• 3K twill weave on visible top surface, weave direction aligned to the C190 bonnet centreline crease for a continuous read with the OEM panel
• Pre-preg carbon laminate, autoclave-cured, with vacuum-bagged consolidation for void-free surface under lacquer
• Wall thickness 1.4–1.8 mm at the edges, 2.5–3.0 mm through the core section, contoured to match the OEM hood radii
• Component weight ~0.6–0.9 kg depending on length variant — light enough to mount with adhesive plus locating fasteners
• Mounting hardware: high-bond 3M VHB structural tape pre-applied + concealed M5 stainless studs through OEM bonnet bracing where applicable, washers and weather seals included
• Finish: deep-gloss UV-stable lacquer as default; matte 2K satin or exposed UV-clear weave on request
• Edges hand-finished, no exposed fibre cuts, sealed against moisture wicking
• Optional underside flock or felt-lining to prevent OEM paint marking on the hood under load

Design & Visual Function

Visually the splitter does what the name suggests — it splits the long Mercedes-AMG GT bonnet into a foreground plane and a background plane. On the C190 the bonnet is one of the longest in the segment; an unbroken painted surface from grille to A-pillar can read soft from a three-quarter angle. The Mansory carbon blade introduces a horizontal break with a sharp shadow line, and because the part references the heat-extraction louvres of the GT R / GT C / Black Series performance hoods, the visual language is clearly motorsport-derived rather than decorative. The car looks lower and more pinned over the front axle even though ride height has not changed.

Weave alignment matters more here than on most parts. Because the splitter sits directly on top of the painted OEM hood, the eye reads carbon-against-paint at very close quarters in showroom light — any misalignment of the twill pattern will jar against the bonnet's reflection lines. Mansory cuts and lays the cloth so the diagonals of the 3K twill run parallel to the C190's central swage; under the lacquer the weave reads as a continuous geometric texture rather than as random checks.

Aerodynamically the part is honest about itself: at road and back-road speeds it is essentially a styling cue, not a downforce device. At track speeds it can promote a slight high-pressure dam ahead of the louvres — useful on cars that already vent heat through factory or aftermarket hood louvres, and neutral on standard hoods. It is intended to balance the visual mass of the front-lip and the side-skirts, not to replace dedicated aero hardware.

Compatibility & Fitment

Designed for the Mercedes-AMG GT (C190) two-door — GT, GT S, GT C, GT R, GT R Pro and Black Series, Coupé and Roadster, with the OEM bonnet retained. Not compatible with the 4-door AMG GT 63 (X290); that car uses a completely different bonnet and structural front end. Pre-facelift (2014–2017) and post-2017 Panamericana-grille cars share the same bonnet outline, so the splitter fits both grille styles — confirm trim with installer if your car carries non-standard louvres or aftermarket hood vents. OEM bonnet pads, wiper jets, washer feed and AMG bonnet release remain untouched. AIRPANEL active aero on GT R is unaffected — this part lives entirely on the upper bonnet skin.

Installation & Reversibility

This is one of the few Mansory C190 carbon parts an experienced detailer can fit without a body shop. Plan 30–60 minutes plus thorough surface prep. The bonnet is opened, the contact zone is cleaned with isopropyl, the OEM clearcoat is wiped with a panel-wipe, the splitter is dry-fit and aligned to factory reference points, then either bonded with the pre-applied VHB and clamped overnight, or fastened through the OEM bonnet bracing using the supplied M5 studs and washers. The part is reversible: VHB releases cleanly with heat and a plastic wedge; M5 mounts (where used) leave only small, sealed holes which are factory-spec for accessory mounting on AMG performance hoods. PPF the OEM bonnet underneath if you plan to remove the splitter later — that protects against any micro-marking under the adhesive footprint. For Black Series and GT R Pro hoods that already carry a centre vent, fitment is identical; the splitter sits forward of the existing vent.

Pairing within the Mansory AMG GT programme

This part is the natural mid-point of a three-way bonnet matrix. Owners who want maximum visual carbon up front go to the full Mansory engine bonnet (exposed weave); owners who want a body-coloured bonnet panel that is still Mansory-built specify the engine bonnet primed (paint-ready); this splitter is the third option — keep the OEM hood and paint, layer a carbon accent on top. Visually the splitter pairs cleanly with a Mansory front lip down at the splitter line and with the front fender splitter cover for a continuous carbon read across the front-quarter view. On grille-branding side, sit the bonnet splitter under a front grill mask on Panamericana facelift cars for a coherent nose treatment.

Maintenance & Durability

The splitter sees more direct UV than almost any other Mansory carbon part on the car — it is on top of the bonnet, in full sun whenever the car is parked. Mansory's UV-stabilised lacquer is rated for prolonged outdoor exposure but, like all clearcoat-over-carbon, benefits enormously from a SiO₂ or graphene ceramic coating once cured. Keep alkaline pH-13 wheel cleaners, ammonia-based glass cleaners and abrasive sponges away from the surface — they micro-etch lacquer faster than they harm OEM paint. A two-bucket wash with a pH-neutral shampoo, a soft microfibre and a quarterly inspection for stone-chip damage at the leading edge is the entire long-term routine. AMG GT cars that see occasional track work often pick up tar and rubber pellets at the bonnet leading edge during sustained sessions; clay-bar them off cold, never hot. PPF over the leading 30–40 mm of the splitter is cheap insurance on cars driven hard. If the splitter chips, Mansory's aftercare can re-lacquer the part off-car within 1–2 weeks; full replacement is also straightforward because the part is bolt-on.

Lead Time & Warranty

Mansory bespoke production runs at typically 4–8 weeks for a small bonnet add-on like this, including weave-direction matching and lacquer cure. The part carries the standard Mansory 12-month warranty against manufacturing defects — laminate delamination, finish failure under normal use, and hardware corrosion. Stone-chip damage and impact damage are excluded; PPF is the recommended mitigation.

FAQ

Q: Does this replace my OEM AMG GT bonnet?
A: No. This is a small add-on splitter blade that bolts and bonds onto your existing factory hood. The OEM bonnet stays — paint, sound deadening, latch, washer jets, everything.

Q: How is it different from the full Mansory engine bonnet?
A: The full engine bonnet (exposed weave) and engine bonnet primed are complete carbon panels that replace the factory hood and shave around 5–7 kg. This splitter is an accent layered over the OEM hood — far cheaper, fully reversible, weight gain of under a kilogram.

Q: Does it fit my Roadster?
A: Yes — Coupé and Roadster share the C190 bonnet outline, so the splitter fits both. Confirm with your installer if the car has been previously modified with aftermarket hood louvres.

Q: Pre-facelift Diamond grille car — is fitment different?
A: No. The grille style does not affect this part — the bonnet outline is shared between Diamond (2014–2017) and Panamericana (2017+) facelift cars.

Q: Can I fit it myself?
A: A careful owner with patience and a clean garage can — the part comes with VHB pre-applied and a fitting template. For first-time buyers we still recommend having an AMG-friendly detailer or body shop handle the alignment to keep weave-direction perfect against the OEM bonnet creases.

Q: Will it affect heat extraction from the M178 V8 BiTurbo?
A: No. The blade sits forward of, or alongside, the OEM heat-extraction louvres rather than over them. Underbonnet airflow paths around the hot-V turbos and intercooler runs are unchanged.

Q: Lacquer or raw weave?
A: Default is deep-gloss UV-stable lacquer for paint-grade match. Exposed UV-clear weave is available on request — it reads more aggressive but needs more careful surface care.

Pair the splitter with the Mansory front lip and either of the full engine bonnet alternatives if you ever want to graduate to a complete carbon hood. To talk through your AMG GT trim, build year and finish, message us on WhatsApp +44 7488 818 747 or write to [email protected].