SPD Tuning Service delivers tuning solutions for the Subaru Impreza and Legacy. The services offered below are the heart of the tuning service and a vital link between you and the improvements you may seek. The FAQ section is of particular importance in informing you of what the options are and, in some cases, are not.

The Tuning Service

Welcome to the performance envelope concept .

Technical Information

A large series of FAQ on all areas of tuning the Impreza ...Recommended Reading

The Non-Virtual SPD

Locals are welcome at Mike's Garage ...

Driving Tips

Comments in response to reader inquiries.