2007 Porsche Cayman '3.8 Swap'

Asking $37,000

The Build

2007 Porsche Cayman '3.8 Swap'

Offering considerably more power thanks to a 3.8L flat-6 borrowed from a 997 911 S, this 987 Cayman is the GT4 that Porsche hadn’t dreamt up yet. The engine benefits from an IPD intake and plenum, a GT3 throttle body, and an ECU tune to unlock more power and give it a greater sense of urgency. Not just about power numbers, this example is wearing some GT3 suspension bits and adjustable Bilstein coilovers to make it a well-rounded performer. All in, we think this is heck of a lot of fun for the money and we would love to give it a go.

Driving video

Mileage:61,800
Title:Clean
Engine:3.8L Flat-6
Trans:6-Speed Manual
Exterior:Arctic SIlver
Interior:Black Leather
VIN:WP0AA29897U762
Seller:Peter W.
Type:Private Party
Location:Scottsdale, AZ

Modifications

•2008 Carrera S 3.8L Engine Swap (@50k Miles)
•GT3 Throttle Body
•IPD Plenum
•IPD Intake
•Engine Tune W/ 997 ECU
•Capristo Valved Headers
•Capristo Valved Exhaust W/ Driver Side Door Sill Button
•Power Steering Cooler Behind Center Front Grille W/ Adapted Corvette Transmission Cooler
•GT3 Front Lower Control Arms
•GT3 Adjustable Front Sway Bar
•Tarrett Adjustable Front Drop Links
•Tarrett Adjustable Rear Sway Bar
•Tarrett Adjustable Rear Drop Links
•Rear Toe Links
•Bilstein PSS9 Coilovers
•Stainless Steel Brake Lines
•Pagid Yellow Brake Pads
•OEM Drilled Rotors
•SRF Brake Fluid
•Front Radiator Deflector Heater Ducts To Front Wheel Wells
•GMG Roll Bar

Recent Maintenance

•Water Pump (@50k Miles)
•Thermostat (@50k Miles)
•Spark Plugs (@50k Miles)
•Oil Pump (@50k Miles)
•Oil Cooler (@50k Miles)
•Engine Gaskets / Seals (@50k Miles)
•Engine Oil Change (02/2026)
•SRF Brake Fluid (02/2026)
•Multi-point Inspection (02/2026)
•Floor Trays Replaced (02/2026)
•Engine Oil Change (@62k Miles | 05/2026)
•Multipoint Inspection (@62k Miles | 05/2026)

Known Flaws

•Radio and heat are not functional
•Interior has some wear
•Paint chips and imperfections (particularly the front bumper)

Seller notes

•Air conditioning functions well
•No issues with overheating including on hot days in Arizona
•GT3 seats and harnesses will not be included in the sale (seats will be replaced)

Asking $37,000