Subaru EJ WRX/STI Single Fuel E-Tune

  • Sale
  • Regular price $375.00
  • ALA
Shipping FREE shipping on orders over $200.

Once Tune purchase is complete, you will get an email with instructions and Base Map within 24 - 48 hours. Due to high demand and being super busy, please allow 72 hours before emailing, texting, or calling me after you send me your Datalog/Map. I will get back to you in order from oldest-newest emails. 

Expedite Fee

You will be prioritized and pushed to the front of the line. Select or search for "Expedite Tuning" under Tuning Tab.

Tuning Refund Policy

Due to the digital nature of the Tune, there will not be refunds or warranty claims. By purchasing the Tune, you acknowledge all sales are FINAL and there will be NO REFUNDS once Base Map is Sent via Email provided, or uploaded onto AccessPort in Person/On-site tuning.

Tuning Waiver

As the “Customer”, I hereby represent that I have read the Tuning policies and that I have full authority to authorize the testing and tuning of this vehicle and to enter into this Waiver/Release.

I am aware that the tuning procedure is intended to and will be to maximize power and performance at Wide-Open Throttle to simulate stress similar to that which the vehicle would experience during operation on the track; therefore, I understand that it is susceptible to the same risks as on the track which may cause wear and tear or complete damage to, but not limited to: Engine, Powertrain and/or Tire/Wheel Failure or Damage.

Tuning Legal Policy

You acknowledge that this product is intended for off-road use ONLY. The customer releases Gap City Performance from any liability of any nature for damage or other losses, which may be sustained as a result of the testing/tuning process.

Customer Reviews
5.0 Based on 24 Reviews
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James H.
United States United States

test and e tune

working with Jesus on getting my WRX tuned in. He's easy to work with, awesome guy, keeps you updated with new maps.

Tyson M.
Canada Canada

5 stars

Amazing at tuning and very quick at sending maps. Would recommend this place to anyone.

Alex S.
United States United States


Jesus got me taken care of, truly amazing skills!! Best in the business

Matthew B.
United States United States

2006 STI E85

Jesus took the time to make my a full list of parts I needed for my e85 conversion, and stayed in contact with me consistently while my car was being worked on, and then through the whole tuning process as well. The tune turned out to be very well done, my car has never felt this good! Can’t wait to come back to him and Gap City with my future projects!

Jose T.
United States United States

15 STI

Gap city customer service is beyond exceptional! Easiest Etune process I've done. Super Knowledgeable