2002 Impreza WRX STi E85 Flex Fuel Conversion Kits
Increase the Horsepower of Your Turbocharged 2.0L 4-Cylinder by up to 20%
The 2000-2007 Impreza WRX STi was the first STi introduced directly to the North American auto market. Though its engine was a little smaller than the next generations of STi sports cars would be, this generation had the best racing suspension of all. It was very stiff and rigid which didn’t always make for a smooth ride but when it comes to cornering, the stiffer the better. No roll. No sway. No slop in the turns. Now imagine increasing that horsepower by up to 20% in an afternoon – by adding one of our plug-and-play E85 flex-fuel conversion kits engineered for your Impreza WRX STi.
No tuning required!
$699 List price $874Starting at $61.50 / month with 
SKU: U-EF-PLUS - Free shipping
- Delivery time 2-5 days
- 5 year warranty with registration
Introduction
The eFlexPlus and the eFlexPro are so easy to install that you can do it yourself in an afternoon and have your car running any mixture of E85 flex-fuel and standard gasoline the same day. Both come with a handy phone app that allows you to monitor the fuel mixture and switch between efficiency and performance profiles effortlessly. The eFlexPro comes with the additional eFlexTuner software that allows you to tune your turbocharged engine on any mixture of fuel above E50. Order one of these for your 2002 Impreza WRX STi today and increase your horsepower from 265 even up to 335.
Installation
Plug&Play installation with some modifications - An experienced mechanic will install in 2-3h. For first time DIY installation, expect to double the time needed.
Technical specs
| Make & Model | Subaru Impreza |
| Years | 2002-2002 |
| Engine | 2.0l / EJ20 |
| Power | 265 hp |
Always Optimized Fully Automatic Flex Fuel
Cooler & Cleaner Engine
Complete System, No Tuning Needed
Up to 20% Increase in Performance
Your Fuel System Verified |  | |
|---|---|---|
| Dynamically adjust engine tune to match fuel | ||
| Available performance and eco tunes | ||
| Select performance or eco tunes via eFlexApp | ||
| Create and save custom dyno tunes | ||
| Pro grade eFlexTuner tuning software |
+ What's included
+ eFlexApp
+ eFlexTuner
+ Installation
Note: If your car is modified you can use E85 with eFlexFuel. If this is the case, please list all the main engine modifications on the checkout page. Our technical team will ensure that your setup is fit for E85.
* Power and torque increase depends on your engine technology and/or your custom built of the engine.
Not legal for sale or use on pollution-controlled vehicles