Bought these to prevent gravel from going through the vents and damaging the sides. Affordable and works as intended.
Communicated very well and got the part delivered. I got it installed IG @daily.type.s awesome customer service!
Please make sure that you are putting all/correct information in for your tune file. Once the tune file has been sent over: No refunds, or exchanges.
Two Step Performance and Derek Robinson are back with their Stage 2 Flex Fuel Tune for the 22+ Civic Si / 23+ 1.5T Integra! The tune offers peak power gains of 62 whp and 118 ft-lbs of torque in comparison to the factory ECU calibration!
Tune Comparisons:
192whp / 190tq - Factory Calibration
221whp / 251tq - TSP Stage 1 Tune
230whp / 287tq - TSP Stage One+ Tune
254whp / 308tq - TSP Stage 2 Tune w/ Flex Fuel

A flex fuel setup including an ethanol content sensor is REQUIRED to use this tune. You are not limited to using the PRL Flex Fuel Plug and Play Kit, but they make a great pair!
All testing was completed on a 2023 Civic Si running 93 octane / E30 fuel blend. Tune features include:
Factory boost level in "Map 1" allows for easy "valet" mode when the KTuner unit is unplugged from the car! 93 octane is REQUIRED for gasoline use. Ethanol content should be limited to 30-40% when blending E85 with gasoline. (35% recommended) Please contact us if you are interested in the 91 octane version.
An aftermarket clutch is REQUIRED, as the stock clutch will not survive this torque level. An upgraded intercooler is HIGHLY recommended. This tune is designed only for use with the factory turbocharger and is not suitable for used with upgraded turbochargers.