Thunder Lane Height-Adjustable Coilover Spring Kit - Porsche 992 Carrera

The Porsche 911 (992) TL-HAS Height Adjustable Spring Kit is Thunder Lane's height-adjustable spring system for the 992 generation 911 —  lets you dial in ride height on your factory (or factory-sized) dampers without moving to a full coilover.

Front Lowering Range: 15-35mm (0.6-1.4 in)

Rear Lowering Range: 20-40mm (0.8-1.6 in)

Height Adjustable, Factory-Damper Friendly, Excellent Ride

TL-HAS lowers the car and lets you set front and rear ride height independently, while keeping the factory suspension — including electronic damping control — fully active. It's the clean way to get a corner-balanced stance and improved handling on a car you want to keep largely OEM. Thunder Lane design allows for great ride and great handling and predictability with the use of helper springs. while this is typically a more expensive solution than a single progressive spring, it allows for more consistent handling on the street and at the limit on track, while still being comfortable for daily driving.

Technical Specs

• Front lowering range 15–35mm; rear lowering range 20–40mm
• Works with factory (and factory-sized) suspension, including electronic damping control (PASM and Sport PASM)
• Independent front and rear ride-height adjustment
  
• Linear and Helper springs with tailored spring travel for improved handling and stance

Fitment

Porsche 911 (991 and 992), 2WD and 4WD, excluding 2024+ GTS