PST Carbon Fiber Driveshaft WRX/STi

PST, Inc. is a state of the art Manufacturer of Driveshafts for applications ranging from "Critical Link" carbon fiber driveshafts to the Super Spline PTO shaft.

The plant has been located in Clearwater, Florida for over 20 years and PST takes pride in serving the U.S. as well as foreign markets with driveline products.

PST, Inc. has been an innovator in the high performance driveshaft business and keep striving to maintain their excellent reputation for driveshaft engineering, technical support and service.

Reasons for Carbon Drive Shafts:


Carbon shafts in case of a fracture will separate into tiny little fibers. For you as a driver its a huge safety factor as unlike a metal shaft you dont have to worry about a 20+ lb shaft flinging around under the car damaging the underbody of the car or going through into the cabin.


The Carbon shafts are a 1 piece design that eliminates the center carrier which is used with the OEM driveshaft. This allows for energy to be quickly transferred from the transmission into the rear differential, and not wasted rotating the carrier and flexing the bushings around it. You will immediately noticed an improvement in throttle response at low RPM driving and acceleration at partial throttle.


The bonding area is 40" and the epoxy used is rated at 3200 lbs per square inch. PST have seen guys break joints and shear the ears off the yokes in some drag race cars that had diff or tranny failure and the bond was still intact!

The shafts are balanced on a Stewart Warner computerized industrial balancer. And the shafts are balanced to under 1/8 in/oz.

Shipping Cost:
PST Carbon Fiber Driveshaft WRX/STi (2002-2007 automatic)
PST Carbon Fiber Driveshaft WRX/STi (2002-2007 WRX 5 Speed)
PST Carbon Fiber Driveshaft WRX/STi (2004-2007 STi 6 Speed)
PST Carbon Fiber Driveshaft WRX/STi (2008-2011 STi 6 Speed)