2006 Porsche

Porsche Cayman S 987.1 Twin Turbo – Ninemeister Mapped – Extensive OEM+ / GT Inspired Build – 98k Miles – £16,995 ONO

A very unique and extensively developed 987.1 Cayman S built over a number of years with focus on drivability, reliability, thermal management and OEM+ style refinement rather than simply chasing power figures.

This is not a generic “mapped Cayman” or unfinished turbo project. The car has had substantial supporting work and preventative maintenance carried out throughout ownership and has been continuously refined mechanically and cosmetically by an enthusiast owner.

The turbo installation/setup was inspected and mapped by Ninemeister.

Approx. 98,400 miles.

The car remains genuinely usable on the road, drives very well, and feels significantly more special/raw than a standard 987 while still being surprisingly civilised at normal cruising speeds. Has been used daily for two years and done a handful of track days over the years (approx. 6–7 total), always properly warmed/cooled and maintained at small intercalazione

The car has also completed three trips to Italy and two North Coast 500 trips during my ownership without issue, proving itself to be a genuinely usable and reliable long-distance car despite the level of modification.

ENGINE / TURBO SYSTEM

* Twin turbo conversion (discontinued kit to my knowledge)

* Ninemeister inspected and mapped

* Approx. 420 bhp

* Upgraded injectors fitted new with turbo build

* Custom carbon intake manifold

* GT3 82mm throttle body

* Dedicated chargecooler setup using OEM Porsche third radiator and original ducting

* Chargecooler pipework routed centrally under the car

* Turbo oil scavenging system with facet pumps

* Funk motorsport turbo blankets and heat shielding

* FVD Motorsport deep oil sump with X51 style baffles

* 997 oil temperature sensor conversion with range reading

* Oil pressure / oil temperature / coolant monitoring display integrated

* Low temperature thermostat

* Water pump replaced

* Pulleys replaced

* Engine mounts replaced

* Rear main seal upgraded using improved design solution

* Bores professionally inspected around 83k miles by OCD Porsche – no scoring present

* No ongoing startup turbo smoke issues

DRIVETRAIN

* Ninemeister lightweight flywheel

* SACHS Upgraded clutch setup 550Nm

* Clutch slave cylinder replaced by Ninemeister

* Design911 short shifter

CHASSIS / BRAKES

* BC coilovers

* Front strut brace

* GT3 brake master cylinder

* Larger Panamera Turbo front and rear discs on OEM calipers (350-330mm) - MRN Big brake kit

* Yellow calipers

* EBC Bluestuff pads

* Motul RBF660 fluid

INTERIOR

* Design911 carbon bucket seats in Alcantara

* Alcantara steering wheel with yellow stitching and 12 o’clock marker

* Custom Alcantara gear knob with matching stitching

* Full Alcantara headliner retrim

* Yellow seat belts

* Custom yellow instrument cluster faces

* GT3-style yellow fabric door pulls (MRN)

* Porsche sunstrip

EXTERIOR

* 19” Bola FLE wheels in gloss black with Porsche centre caps

* Smoked 981-style LED rear lights (originals available)

* LED headlights

* Rennline smoked LED side markers

* Light smoked PPF on headlights

* OEM+ / GT-inspired overall styling

* Carbon Cayman R-style wing

BODYWORK / COSMETIC CONDITION

The car presents well overall and gets a lot of attention, however it is important to note this is not a pristine/showroom example cosmetically. The car has been driven, enjoyed and developed over a number of years rather than hidden away.

The rear bumper is currently a GT4-style aftermarket one and the original rear bumper will come with the car. The front GT4-style bumper will also be included but needs painting.

The paintwork has the expected age/use-related imperfections consistent with an enthusiast-used car of this mileage and type, including usual stone chips and a clear coat issue on the front right wing.

I would much rather represent the car honestly than advertise it as something it is not.

Mechanically however the car has been maintained obsessively and a huge amount of preventative/supporting work has been carried out throughout ownership.

OTHER

* MOT until October 2026

* Extensive maintenance history and obsessive oil servicing throughout ownership

* Original parts included where applicable

* GT3 adjustable front control arms with shims available

KNOWN POINTS

Trying to be fully transparent:

* Calipers have cosmetic chips/wear

* Paintwork imperfections mainly

* Rear bumper wrap as close as possible to original paint. Oem bumper available.

* little scuff on the driver side seat as pictured

This car will not suit someone looking for a factory-original collector example. It is however likely one of the more extensively developed and mechanically sorted turbo 987 builds around, built with significant attention paid to supporting systems and long-term reliability rather than simply adding boost.

Apologies if the car wasn’t properly cleaned for the pictures but I have very little time at the moment.

Please no tyre kickers or “what’s your lowest price” messages before viewing.

£16,995 ONO