Subaru EJ WRX/STI Single Fuel 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
5.0 Based on 11 Reviews
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Filter Reviews:
Joshua D.
United States

Amazing tuner

Jesus is the best tuner out there he’s helpful with any questions you have with quick responses. My car runs 10x better than it did highly recommend getting tuned by him I will definitely be using him again in the future

Darius N.
United States United States

Tune parts and question

Overall great experience Jesus really knows what he’s talking about and there shipping is always fast every answered I ask he answered great guy great company and my car runs beautiful

King L.
United States United States

Tuned by jesus

It was great customer service, he got to me very quick and answered all my questions, will definitely buy from you guys again. Thanks.

Larry C.
United States United States

2014 STI

Service and response time is beyond great!

Keanan s.
United States United States

Honest review

Love the over all costumer service. Blown a turbo and Jesus sat down with me all day looking at affordable setups. Making sure everything will fit properly and everything. Got a tune and could not be happier. Speed and burble tuned had a little hiccup with a boost cut and not 10 min later it was fixed.