ECU Tune Add on Flex Fuel

$200.00

Unlock even more hp with a flex tune add on to your tune.  With this upgrade you can run a mix up to E40 and unlock the performance enhancements doing that.  You can also run straight 93 which means this tune is ideal for a daily driver or across country where there may not be ethanol.

Description

Flex Fuel Upgrade for your tune allows you to run up to E40.  This blend enables more boost, timing advance which helps propel higher hp and unlocks quicker times from a dig or a roll.

These tunes often gain 50 hp over a comparable 91 tune. One of the downsides of the “colder” ethanol fuel is a rougher cold start in the cold weather.

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