The directions were easy and clear to follow. The turn around was quick and on time. The program increased acceleration and added some power also. I have many bolt-on's installed on my car and the ecu program brought them all together. This custom ecu tunning is perfect for anyone with modified engines.
From Denver, CO
Own this product - Yes
Vehicle: 1994 AUDI 90
Jets turnaround was very good--two days out and back. I had some questions prior to purchasing the upgrade and after the installation, and in both cases they were courteous, helpful, and generous with their time.
For this car (1994 Quattro 90 CS), the ECU is a little awkward to locate and remove, and I didn't receive any instructions with the package that Performance Center shipped me, as promised in the product description.
The driveability of the car with the ECU upgrade is very good using the OEM fuel grade (premium), with no engine roughness at any speed or accentuated power-band peaking. Based on the performance increase, the horsepower increase easily exceeds the 10-12 hp advertised, although I did combine the ECU upgrade with porting the primary venturi in the throttle body. I haven't had enough time with the upgrade to accurately determine fuel economy, but it doesn't appear to have been too adversely affected.
Because there are so few performance modifications available for this car, this is a very welcome product, especially at 6,000 feet altitude--I would recommend it to anybody who wants more performance out of Audi's 12V V6. If I hadn't bought the Bentley repair manual, however, I would have been in the dark on locating and removing the ECU. If this is a matter of coordination between Perfomance Center and Jet Performance, it could be improved. If the oversight is due to Jet Performance, they should follow through on their promise to provide full instructions for each car.
Otherwise, the upgrade was quick and painless.
MAZDA 1998 2.0 4 CYL computer upgrade
Review for: Custom Computer Upgrade Kit
From Tampa. FL
Own this product - Yes
Vehicle: 1998 MAZDA 626
Computer was received within the set up delivery, installed and so far anything out of the extraordinary, I even took it to a Mazda certified mechanic and he could not tell difference, maybe will be able to tell when time paces.
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