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991 Transmission & Driveline

Improve the shifting feel, durability, and drivetrain performance of your Porsche 991 with premium transmission upgrades from Flat 6 Motorsports. Whether you drive a 991.1 Carrera, 991.2 Carrera, Carrera S, GTS, Turbo, Turbo S, GT3, GT3 RS, or Targa model, the right transmission components can enhance response, increase confidence, and support the demands of both street and track driving.

Our Porsche 991 transmission collection includes performance clutch upgrades, flywheels, short shifters, shift cables, transmission mounts, differential upgrades, limited-slip differential components, PDK service parts, transmission fluids, cooling solutions, and supporting hardware from trusted Porsche aftermarket brands. These upgrades are designed to improve shift precision, reduce drivetrain movement, increase torque capacity, and help maintain consistent performance under demanding conditions.

For street-focused 991 owners, transmission upgrades can sharpen engagement, improve drivability, and add confidence during spirited driving. For track, autocross, or high-horsepower builds, upgraded drivetrain components help manage added load, heat, and repeated aggressive use.

At Flat 6 Motorsports, we offer tested, proven transmission solutions for Porsche 991 owners looking to improve shift quality, reliability, power delivery, and overall driving performance.