Aur outtakes spliter Mansory carbon for Rolls-Royce Cullinan Coastline

Air Outtakes Splitter — Cullinan Coastline (Mansory Carbon)

The Mansory Coastline air outtakes splitter for the Rolls-Royce Cullinan is a discreet but defining piece of the rear aero choreography — a carbon fin set that nests inside the lower rear-bumper outlets, framing the heat-vent apertures and adding dimensional depth to the three-quarter view as the SUV pulls away. It belongs to the wider Mansory Coastline carbon programme; you can see the full ensemble on the parent kit page Mansory Body Kit for Rolls-Royce Cullinan. On a 5.34-metre, 2.66-tonne luxury SUV with a 6.75-litre twin-turbocharged V12, satellite-aided 8-speed automatic, rear-hinged coach doors and a Spirit of Ecstasy presiding over the Pantheon grille, every piece of carbon has to earn its place — and this one does so by giving the rear bumper an architectural rhythm that pairs naturally with the central rear-bumper splitter and the protective transverse bar.

Construction & Materials

The component is laid up as a multi-fin assembly in aerospace-grade carbon-fibre prepreg. Mansory's coachbuilt approach favours an autoclave cure for the visible weave skins, with an internal RTM substructure that gives the fins their stiffness without bulking up the silhouette. The fin set arrives as a single bonded module that cradles into the bumper outlets via factory-aligned tabs and threaded inserts; no surgery on the OEM bumper is required.

Each fin carries a clean 3K twill skin on the outboard face — the Mansory house weave — with a finer 2K plain-weave inboard run that reads more cleanly through the deep-gloss lacquer. A forged-look option is available on request when the owner wants a raw, sculptural texture rather than a perfectly oriented twill diamond.

• Weave: 3K twill (default visible face), 2K plain (inboard), forged-look (option)
• Cure: autoclave for visible skins, RTM prepreg for the structural core
• Wall thickness: ~1.6–2.0 mm at the fin root, ~1.1 mm at the trailing edge
• Weight: ~1.2 kg complete fin set (vs ~1.9 kg for a bonded-aluminium aftermarket equivalent)
• Hardware: stainless threaded inserts, OEM-pattern clip tabs, butyl gasketing at the bumper interface
• Finish: Mansory deep-gloss UV lacquer (default), satin lacquer, or paint-matched to bespoke Rolls-Royce coachwork on request
• UV stabiliser package layered into the lacquer for long-term weave clarity
• Inboard heat-tolerant resin spec — keeps the matrix stable next to the rear underbody airflow

Design & Visual Function

The Cullinan's rear bumper carries two outlet apertures that, in OEM trim, read as quiet rectangular voids. The Mansory air outtakes splitter fills those voids with a finned, rhythmic carbon insert that adds light-and-shadow play to the rear flank. Read alongside the central rear bumper splitter and the horizontal rear bumper protective bar, the three pieces compose a layered horizontal rear graphic that lengthens the SUV visually and gives the tailgate split a coachbuilt frame.

Functionally, the fins are angled to coax heat out of the rear underbody — useful on a heavy V12 SUV that has been pushing hard along a motorway gradient or sat in low-speed parade traffic. The fin geometry is shallow enough to keep airflow attached at motorway cruise, and the overall component is designed to be aerodynamically neutral in the broad sense — Mansory's brief here is theatre and thermal egress, not measured downforce.

Visually, the splitter respects the Cullinan's coachbuilt vocabulary. The weave verticals on the outboard face echo the Pantheon grille's vertical rhythm at the front of the car, knitting front and rear together when the car is read in profile. Owners specifying bespoke coachwork colours often pick the deep-gloss lacquer over raw weave because it lets the fin set recede into the bumper at distance, then reveal its carbon depth as you walk closer — a quiet bit of Rolls-Royce theatre.

Compatibility & Fitment

Designed for the Rolls-Royce Cullinan (2018–onwards), Standard and Black Badge variants, in the Coastline Mansory programme spec. The fin set is dimensioned to the Cullinan's rear bumper outlet apertures and is not interchangeable with Phantom or Ghost rear-bumper geometry. OEM rear parking sensors, reverse cameras and tailgate (clamshell) operation remain untouched. Air-suspension self-levelling sensors and rear ride-height behaviour are unaffected. Approach- and departure-angle clearances are preserved at every air-suspension setting, including the raised off-road profile that owners use over kerbs and steep driveways.

Installation & Reversibility

Allow roughly 60–90 minutes for a careful fit. Tools: T25/T30 Torx, 8 mm and 10 mm sockets, plastic trim wedges, isopropyl wipes, butyl tape, low-residue masking. Prep the bumper outlet rim with isopropyl, drop the fin module into its locating tabs, snug the threaded inserts to manufacturer torque, then bed the butyl gasket. Reversibility is total — no drilling, no bonding, no irreversible cuts to OEM panels. A future owner can return the bumper to factory in the time it took to fit. For owners who prefer hands-off, a Rolls-Royce-certified body shop or a Mansory-trained installer will fit the splitter alongside the broader Coastline kit; for an experienced detailer this part is well within DIY scope.

Pairing within the Mansory Cullinan Coastline programme

The air outtakes splitter is one of three rear-bumper graphics in the Coastline carbon roster; the natural co-spec is the central rear bumper splitter for centre-line authority and the rear bumper protective bar for the horizontal graphic that ties the rear flanks together. Owners who want their rear aperture vocabulary to read consistently with the side flanks often add the air outtake splitter sibling — note the slightly different slug, this is a related but distinct part — for a fully resolved carbon language from corner to corner. The full Coastline composition lives at the parent kit: Mansory Body Kit for Rolls-Royce Cullinan.

Maintenance & Durability

Wash with pH-neutral shampoo, two-bucket method, plush mitt. Avoid alkaline cleaners, ammonia-based glass sprays drifting onto the lacquer, and any abrasive sponge — these are the three faster ways to dull a Mansory deep-gloss finish. A ceramic coating layered over the lacquer is the modern preference; carnauba is fine but needs more frequent reapplication on a daily-driven SUV. Because Cullinan ownership tends to mix school-run, long-distance and unsealed driveways, the rear bumper area sees more grit kick-up than a coupé would; we recommend self-healing PPF over the lower fin tips if the car spends time on gravel. If a fin chips, the visible weave skin is locally repairable by a Mansory-trained carbon tech — the fin set rarely needs full replacement.

Lead Time & Warranty

Production is bespoke at Mansory's atelier; expect 4–8 weeks lead time depending on finish spec and queue. Twelve-month manufacturer warranty against defects in materials and workmanship.

FAQ

Q: Will this fit a Cullinan Black Badge as well as the Standard car?
A: Yes — both share the same rear bumper outlet apertures, so the fin set fits identically across Standard and Black Badge.

Q: How much weight does it save versus the OEM treatment?
A: The OEM rear-bumper outlets are open voids, so this part adds presence rather than removing weight. Versus a hypothetical bonded-aluminium aftermarket equivalent, the carbon module is roughly 700 g lighter.

Q: Lacquered weave or raw weave — which holds up better day-to-day?
A: Lacquered. On a daily-driven SUV the UV-stabilised lacquer is the right choice; raw weave is a beautiful aesthetic but demands more careful storage and far stricter cleaning chemistry.

Q: Does the fin set affect the rear parking sensors or reverse camera?
A: No. Sensor cones and the reverse-camera field of view are preserved by design — the fins sit inside the outlet apertures, not across the sensor zones.

Q: Air-suspension ride height — is there a clearance issue at the lowest setting?
A: No. The fins terminate well above the bumper's lowest edge, so even at the parking-access lowered profile, there is no scrape risk over standard kerbs and ramps.

Q: Can I paint-match the fins to my bespoke coachwork colour instead of the deep-gloss carbon look?
A: Yes. Mansory will paint-match to the Rolls-Royce paint code. Expect 1–2 weeks added lead time for a paint-matched spec.

Pair this air outtakes splitter with the central rear-bumper splitter and the horizontal protective bar for a fully resolved Coastline rear graphic. To configure, request a finish sample, or place an order: WhatsApp +44 7488 818 747 or [email protected].