R.S. Enthalpy

We will not be processing orders from Nov 17-29. All ecus received during this time will be held. If you are planning a order during this time, ship the ecu so we get it around the 29th.



 Once you start your order below, the next steps will ask for your shipping address, payment via Paypal or Credit Card and finally you will be directed to a question form which you will fill out about your setup. Turnaround time is usually 1-2 days for most orders with free upgrade to overnight shipping on new ecu tunes. All ecus are shipped back USPS Priority / Express Padded Envelope (other shipping available on request).

For all tunes / retunes below, you are shipping us your ecu to have it tuned, unless the package states that we are providing the ecu. If you do not have a ecu to send in or need a core, please contact us prior to ordering. 


    Retune – On existing RS Enthalpy tunes


    SR20DET – ALL S13, S14 and S15 tunes


    KA24DE – S13 and S14 


    KA24E All SOHC  


    RB Series 1 and 2 Motors via a Z32 ECU


    VH45 – Early 1990-1991 ECUs