Subaru WRX/STI Flex Fuel E-Tune

  • Sale
  • Regular price $575.00
  • 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 4 Reviews
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Filter Reviews:
Chris L.

12 STI

Jesus is a tuning god for subaru's. My Build made over 800whp with crazy powerband. HIGHLY RECCOMEND

Omar C.
United States United States

2011 wrx flex tune

Amazing work he has done to my car with the parts and tuning. Highly recommend jesus to tune it and to get parts from knows all his stuff about subarus. knows what parts have the best quality and fits your car. This guy is straight fire no cap!!

Christian C.

2015 STI Flex Fuel Tune

Night and day Difference from my previous "Pro Tune" 15 STI Full Bolt ons E85 with a big turbo! Response time was amazing tuning process was a cake walk! I had came to Gap City with tuning issues car ran terrible on pump gas. idleing issues, a constant stutter at certain rpms after talking with them a couple data logs later the car runs amazing pulls hard through the rpms and just keeps going. looking forward to building my block and having Gap City tune it!

Adrian C.

2011 STI flex tune

Jesus @ Gap City Performance gave me that special #GapSause and wow! It didn't dissapoint. Amazing powerband and car just keeps on pulling! Highly Recommend! Very knowledgeable with subaru builds and tuning is spot on!