Hondata CANFlex Flex Fuel Kit | 17-21 Civic Type R FK8

Fits:

• 2017 - 2021 Honda Civic Type R FK8

Requires FlashPro Manager 4.3.3 beta or later; FlashPro itself is sold separately and not included. Your FK8 ECU must be jailbroken before the CANFlex calibration can be installed. Designed for stock intake and exhaust setups.

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Hondata CANFlex is a 49-state SEMA-certified flex fuel solution for the turbocharged 2.0L FK8 platform, letting you run pump gas, E85, or any blend in between without swapping tunes. On its own, CANFlex adds roughly 28 hp over stock by spooling the turbo earlier and running a flatter, more usable torque curve — no more falling off boost high in the rev range.

Paired with a Hondata Fuel System, gains climb substantially: up to 71 hp, with conservative daily-driver calibrations tuned for 400 hp and 400 lb-ft. E85 also acts as an in-cylinder intercooler, adding a charge-cooling benefit you don't get from pump gas alone. The tradeoff is a slight hit to fuel economy, and an experienced tuner can dial in even more on a built engine.

Features

• 49-state SEMA certified, passes smog testing
• ~28 hp gain on a stock setup; up to 71 hp with a Hondata Fuel System
• Turbo spools 200-400 RPM earlier on E85 for sharper throttle response
• Runs pump gas, E85, or any blend — fill up anywhere
• Includes fuel line adapter with ethanol sensor, E/B/CAN converter box, OBD2 adapter cable, and adapter cable
• Calibrations included in FlashPro Manager software