*When ordering, you must provide your KTuner serial number in the notes section during checkout. New tune orders are fulfilled via email every couple of hours throughout the business day.*
**This tune is for KTuner ONLY and is not offered for Hondata FlashPro**
Two Step Performance and Derek Robinson are back with their Stage 2 Fuel Fuel Tune for the 2017 Civic Si! The tune offers an additional 88 whp and 121 ft lbs of torque in comparison to the factory ECU calibration!
A flex fuel setup including an ethanol content sensor and KTuner flex fuel converter is REQUIRED to use this tune. You are not limited to using the PRLFlex Fuel Plug and Play Kit, but they make a great pair!
Factory boost level in "Map 1" allows for easy "valet" mode when the KTuner unit is unplugged from the car!
Premium fuel (91 or 93 octane) is REQUIRED for gasoline use. Ethanol content should be limited to 30-40% when blending E85 with gasoline. (35% recommended)
An aftermarket clutch is STRONGLY recommended, as the stock clutch will not survive this torque level.
This tune is designed only for use with the factory turbocharger and is not suitable for used with upgraded turbochargers.
Dyno testing performed on a 2017 Civic Si with ClutchMasters FX400 and KTuner FlexFuel converter setup (stock airbox/filter, stock downpipe/front pipe, stock exhaust, stock intercooler, etc). More power/torque can be seen with better cooling and higher flow bolt-on parts.
Suitable for use with the factory intake or a QUALITY aftermarket intake that keep fuel trims in check such as the PRL Motorsports Cobra. Aftermarket downpipes are also fine.
This tune is for the 2017+ Civic Si with a flex fuel converter only. Please be sure you are purchasing the correct tune for your vehicle because digitally delivered items are non-refundable. (If you buy this for your 2016 Civic LX, it won't work, and we cannot offer a refund.)
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