Review on π Innovative Performance Chip/Power Programmer for Toyota 4 Runner 2.4L, 2.7L, 3.0L, 3.4L, 4.0L, and 4.7L - Enhance Fuel Efficiency, Save Gas & Increase MPG, Boost Horsepower & Torque! by Francisco Yim
Scrap absolute scrap that can be returned
installed by the manufacturer. I just drove 1000 miles and removed it for the last 400. Not only did I not get an increase in mileage, but I lost miles and no noticeable increase in horsepower. I lost about 4 mpg. the last 400 when i deleted them came back. wanted to return it but couldn't, threw away the Revain and didn't drop the 'guarantee'. Don't risk it, you will lose.
- engine management systems
- Definitely a bad product
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