Subaru FA 2015+ WRX E-Tune

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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.

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 road/track; therefore, I understand that it is susceptible to the same risks as on the road/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
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Noel R.
United States


Very great experience very precise ! Told me everything I had to do step by step when I had questions he had answers for them ! Very responsive and respectful would definitely recommend to anyone looking for an etune ! Car feels amazing very responsive with only 3 basic mods (intake, dp, and bpv) I can feel the extra power she has !

Andrew M.
United States United States


Great responsiveness real quick return times and willing to assist on any questions asked. I’m new to the Subaru game and Jesus really helped me out

Ashley A.
United States United States

Fantastic experience

I have a 2019 WRX. This was a great experience! Gap City took the time to listen to concerns and explain to me how it all works. He was great with keeping in contact through entire process. My baby is running beautifully and I’m really enjoying her! I will absolutely continue to use Gap City Performance as I continue my build and need tune adjustments I can not say enough five stars all the way!

Sam B.
United States United States

Best customer service

Great service and very fast response times. Super knowledgeable tuner

David M.
United States United States

Immaculate Service

Jesus took the time to get me tuned on a Sunday since that's the only day I had free. Thank you!