STM McLaren Crank Wrench (STM-MCL-CW) BLOX BRZ and WRX models are

BRZ and WRX models are developed specifically for street use

While the integrated duckbill chin-spoiler keeps things planted at speed

The tubing is custom wound with a high modulus fiber to ensure the strength while making it small enough to clear everything under the car

• 10F drop in global intercooler coolant temperatures over stock

STM McLaren Crank Wrench (STM-MCL-CW) BLOX BRZ and WRX models areThe STM McLaren Crank Wrench was developed in a pinch. While installing an aftermarket crank bolt on a 570S we needed something other than the factory crank lock key to hold the crank steady while bringing the torque to 400 FT LBS. This was our answer, and now you can have one in your tool box too! We recommend starting with the factory crank lock key and running the torque on your aftermarket main bolt to 165 FT LBS. Then, remove it and use the STM