Andre,
What year is your car? If you are running an OBDI, 3.0L setup I have an alternative to the Comptech ECU upgrade. I recently had the BBSC installed on my '94 3.0L and have the Dinan Stage III chip that was in my ecu for sale. The chip is awesome for a naturally aspirated setup. It steups up your fuel mapping and timing in addition to raising the redline to 8,500rpms. With the Dinan chip and Comptech I/H/E I dyno'd 268.3rwhp and 205.1 torque to the wheels. This chip was originally over $400, the first $200 takes it. My Comptech carbon fiber cold air intake is also for sale. Good for 8rwhp according to Comptech. They sell it for $729, the first $400+shipping owns it.