Benefits of upgrading your current TCU
(model 4.3 or 4.5)
to the newest version 4.6:

- Higher boost pressure (39.9inhg)
- Faster wastegate response (Fast full boost at take-off)
- Allowance for higher Airbox Temperature without a reduction in
  boost
- Easier and quicker Throttle Position programming
- NO NEED for a Dongle to read/program TCU

Bully Hawk's 914 TCU Upgrade Kit comes with everything you need for a quick and simple upgrade:
Just plug in the 4.6 TCU to your current wiring harness and replace the Airbox Temperature Probe (included).
Instructions and Programming / Communication Software (DOS only) Included.