The H&R 29953 is a set of lowering coil springs for the 1995 to 1998 Porsche 911/993 C2 and C4, covering Coupe, Targa, and Cabrio bodies in both 2WD and AWD form. The manufacturer's application table lists it for non-turbo cars only, and it targets roughly 1.4 inches of front drop and 1.3 inches at the rear. Owners on user forums say these springs feel significantly stiffer than the stock springs, so buyers who want a firmer, flatter stance than the factory setup, without moving to adjustable coilovers, have a clear reason to choose them. Keep in mind that a lower center of gravity and less body roll are the goals here, and the ride will be firmer as a result.
Because the springs change ride height, the old dampers matter. Owners recommend assessing the condition of the stock struts before fitting new springs, since worn shocks are a poor match for a stiffer, lower setup. Plan on a four-wheel alignment after the install. One owner on a user forum reported that the rear camber would not come into spec with the lowering springs, which is a useful heads-up for anyone searching for 993 lowering springs with wheel-fitment and handling goals in mind. Confirm exact spring rates and set contents with the manufacturer before ordering.
No. The manufacturer's application listing covers only the non-turbo 1995 to 1998 911/993 C2 and C4 models, so turbo cars fall outside the listed fitment.
Yes, plan on one. Owners on user forums report that the springs can push rear camber out of specification, so an alignment should be part of the job.
Owners on user forums recommend checking the age and condition of the stock dampers first. Lowering springs are stiffer than stock, and worn shocks may not handle the new setup well.
This is an intermediate-to-advanced job that involves removing the struts. Owners on user forums say you will need a 21mm strut nut tool to hold the strut while you remove the top nut, along with a full set of metric sockets, box wrenches, a torque wrench, and penetrating oil. Loosen the top strut nut while the car is still on the ground, because once the car is on jack stands the strut can spin and become difficult to remove. Some owners also remove the brake caliper bolts and disconnect the sensor wiring to make the work easier. A four-wheel alignment should follow the install, so budget for that step as well.
