Porsche 993 Carrera ECU Tune

Performance ECU software upgrade improves horsepower, torque, and driving characteristics by reprogramming various sensor inputs, air/fuel ratios, and boost pressure (if applicable).                                 

NOTE: 

• This is not a physical/shipped product.  This upgrade requires you to send us your ECU for re-programming.  You will be emailed a download link with detailed instructions after adding this to your cart and checking out.
• DME/ECU upgrades are available for all 993 Carrera models, but you must specify which style of DME/ECU your vehicle requires.  Early model 993's (1994-1995) typically use a DME software chip, while the later cars (1996-1998) use an ECU software tune.  Cars equipped with the "drive-block" feature (any model years) use an OTP-style ECU.  You can verify that your car requires an OTP by inspecting the stickers on your factory ECU.  If the number on the Porsche sticker is 99361866600, 99361866601, 99361866602, or 99361866603, then you will need to select the OTP ECU tuning option.