Porsche 911 Carrera 4 (997.1) 2005–2008 Performance Parts & Upgrades

• Porsche 911 Carrera 4S (997.1): the 3.8L version
• Porsche 911 Targa 4 (997.1): same drivetrain with a glass roof
• Porsche 911 Carrera (997.1)
• Porsche 911 Carrera 4 (997.2)
• Porsche 911 Carrera 4 (996)
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• Coilovers: Öhlins Road & Track, AST and MOTON kits for the Carrera 4, 4S and Turbo (997), and Öhlins EDC cancellation kits.
• Drivetrain: Wavetrac front limited slip differential for the AWD front axle and a G97 rear diff for the manual.
• Brakes: Brembo GT, GT-S and Pista front kits and the AP Racing CP9660 kit, plus Frenkit rebuild kits.
• Suspension arms: HARDRACE caster, toe and camber arms and SPL trailing arms and eccentric lockout kits.
• Fuel and steering: Radium Engineering fuel filter kit and NRG short hub adapter.

• Carrera 4 or Carrera: coilovers come in separate all-wheel drive versions. Pick a kit listed for the Carrera 4.
• Front or rear diff: Wavetrac makes a front diff (Z64-Z96) and a rear diff for the 6-speed manual. Choose the axle you want to change.
• Carrera 4 or 4S brakes: big brake kits for the Carrera 4 are titled C2 / C4. The 4S takes the C2S / C4S kit.

Suspension arms, coilovers and brakes should be fitted by a qualified workshop, followed by a wheel alignment and a brake bleed and road test. A limited slip differential is a gearbox job for a Porsche specialist. Always follow the maker's instructions and torque settings.