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RS-Enthalpy ECU Tune for SR20DET

5 Star Rating

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Now available through Enjuku Racing is RS-Enthalpy ECU tunes for your SR20DET. This ECU tune is for a plug-in-play fuel management solution. Avoid the hassle of wiring up S-AFC's or needing dyno time to tune your standalone system - just send us your ECU and we'll get it tuned to your specifications for a direct bolt in solution!

These tunes have been widely used in the SR20DET community since early 2001. This ECU tune is what powered Team Enjuku's Twin S13.5 drift cars in their rookie 2005 Formula D season - and these cars made over 400+ horsepower to the wheels!

Supported SR20DET applications are as follows:

  • S13 SR20DET (Redtop and Early Blacktop)
  • S13 SR20DET Kouki 180sx (J4/J5 ECU Code)
  • S14 SR20DET Zenki (WC/WE ECU Code)
  • S14 SR20DET Kouki (NA ECU Code)
  • S15 SR20DET

Below is a list of the tuning options for the SR20DET RS-Enthalpy ECU tune:

Mass Air Flow Meters:

  • Z32 (N62) MAF
  • Maxima (N60) MAF
  • S13 SR20DET MAF

**Please note Cobra MAF is NOT supported. Q45 MAF is also NOT supported. Not all MAF/Injector combinations are supported. if you have a non-standard combinaiton please email us for information.

Injector Size:

  • 370 to 850cc side feed injectors
  • 50# and 72# MSD top feed injectors
  • Injector Dynamics 750cc - 1300cc

Please email us a complete list of engine, turbo and fuel system modifications to - This is what you are paying for, and this is what the ECU will be tuned for. Be specific as possible please. If you want it tuned for something, note it!

The initial tune for the ECU is $399.99 and any additional re-flash for an updated tune is $150 (please email or call if needing re-flash). 

Upon purchasing this item Please ship your ECU to us at:

Enjuku Racing
300 Hatteras Ave
Clermont, FL 34711

Be sure to include all of your order details and your complete Mod list for the car.

General turnaround time is ~1 week minus shipping time.

Product Reviews

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    Posted by Chandler Lindsey on 13th Apr 2016

    Martin was really helpful and stayed in contact with me through out the process. Also shout out to the enjuku team namely Wesley for being really helpful and quick to respond. If you need a good base tune, these are the guys to get it from. Oh, and they offer a launch control system!

  2. amazing

    Posted by joe mohr on 17th Dec 2014

    right out the box worked great. best customer service ever. dont get re-flashed by anyone else.

  3. s13 sr blacktop

    Posted by griffin on 19th May 2014

    guy that runs rs has great customer service,always got back to me withing 30 mins of emailing him, sent out my ecu to him and got it back within 2 days, plugged it in and started right up. mods 18g godspeed turbo, 550cc inj, z32 maf, with dw fuel pump. car feels great and pulls awesome at 15 pounds. deff recommend rs-enthalpy and alot cheaper then an e-manage

  4. s14sr in s13 coupe 350whp

    Posted by Dany P on 23rd Oct 2013

    Had it done on a previous 240 several years ago and doubted it, had it retuned on the dyno in person and graph was so close I know I wasted my money on the retune. Now I bought another 240 with greddy emanage and it sucks! will be sending my ecu that way hopefully whenever I get the extra money.

  5. s13 Blacktop n62 rom tune

    Posted by Blake on 6th May 2013

    R.S. Enthalpy is amazing got a rom tune through them and got so much more power, throttle response, quicker turbo spool and it's super reliable.

  6. SR20 E4 ECU

    Posted by Unknown on 28th Feb 2013

    This tune is awesome! A friend of mine has a 240 with an almost identical setup and it makes noticiably less power. Also my tune has the 2-step launch control feature which takes the guess work out of getting off the line quickly.

    '90 240sx, Blacktop SR20, FMIC, full 3" S.S. exhaust

    GO RS!!

  7. Kouki ECU code: NA

    Posted by KR5kouki on NICO on 25th Jun 2012 the bee's knees, man. Jim Wolfe told me they dont rom-tune kouki sr20det ecu's, but Enjuku does!

    the ecu is great. flattened out my torque curve AND maintained my whp rating.
    fmic, 370cc injectors, 255lph pump, z32 filter, custom intake, recirc bov and GT28[ebay], full 2.5" exhaust @ 12psi my car put down 292.3rwhp and 280ft/lbs.