GReddy Performance ECU
Experience a New Driving Feel
Product features
We have developed optimal data by analyzing the stock ECU data and making numerous data changes to achieve the best performance when combined with Trust parts.
Although ECU units differ for each vehicle model, we use specialized software and equipment for each ECU. Our dedicated staff for each vehicle spends time testing from city driving to circuit racing.
The written setting data is encrypted, so users cannot tune or edit the data themselves.
We have prepared a wide range of data, from fine-tuning for rev limiter removal, muffler replacement, and boost increase, to vehicles equipped with GReddy bolt-on turbo kits.
– About Ordering –
We cannot accept direct orders from individual customers. Please inquire with a dealer.
Please be sure to fill out the dedicated pledge form when applying.
– Precautions –
– The rewriting process requires us to keep your stock ECU.
– After ECU rewriting, manufacturer warranty and maintenance at dealerships may no longer be available.
– After ECU rewriting, fault diagnosis at dealerships is possible, but reprogramming may not be possible.
– For vehicles with non-specified parts or other manufacturers’ products installed, the setting data may not match.
– For turbocharged vehicles, settings change with boost pressure, so please do not alter the boost pressure.
– All setting data is based on 100 octane high-octane gasoline.
– As power increases due to ECU data rewriting, please change the spark plugs to the specified heat range.
– Please note that we cannot be held responsible for any troubles or failures that occur after ECU data rewriting.
– The “GReddy Performance ECU for High-Flow Turbine Kit HA36S” is set up assuming the use of the R35 GT-R stock fuel pump, so please note that the R35 GT-R stock fuel pump is required separately. Also, it is compatible only with manual transmission vehicles.