Hondata FlashPro for 2012-2025 Honda Civic Si

Transform your 2012–2015 Honda Civic Si into a track-capable machine with the Hondata FlashPro RACE. This plug-and-play ECU tuning system gives you full control over fuel, ignition, VTEC, rev limiters, and more — all without opening your ECU. Live tuning and extensive datalogging via the included FlashPro Manager software make it the go-to solution for daily drivers and serious tuners alike.

With support for forced induction setups, large injectors, MAP-based tuning, and even individual cylinder trims, FlashPro RACE is the most powerful tuning solution available for your 9th gen Civic Si.

Join thousands of Civic Si owners who’ve already transformed their cars with Hondata. Whether you’re chasing smooth drivability or serious power gains, this unit does it all — from mild to wild.

Key Features:

• Compatible with 2012–2015 Honda Civic Si (US models)
• Connects via OBDII — no ECU modification required
• Live tuning and real-time adjustments via USB
• FlashPro Manager tuning + datalogging software (Windows)
• Dual calibration support — store and switch between 2 tunes
• 20 hours onboard datalogging memory
• Custom laptop gauges, check/clear diagnostic codes
• Works with Hondata traction control
• Expanded fuel, ignition, and knock tables
• Injector scaling, latency, and individual cylinder trims
• Supports AFM or MAP-based fuel tuning
• Supports 4 bar MAP sensors (43 psi boost)

Tuning Capabilities:

• Ignition, fuel, and idle speed control
• Rev, speed, and launch limiter adjustment
• VTEC window adjustment
• Forced induction support
• Map tracing & lambda overlay

What Civic Si Owners Are Saying:

"We got an improvement of +85% on peak power/torque with over +100% improvement overall." - Mo Choudhury, Swift Racing Technologies

"I don’t think you truly understand the greatness of FlashPro until you boost without it. The car drives BETTER than my friend’s Mazdaspeed6." - Soxfan143

"Car feels like it just lost the flu... actually, it feels like it lost the black plague!" - SIporfavor

Included In The Box:

• Hondata FlashPro
• USB Cable
• Stickers
• Quick Start Guide

IN STOCK

Ships to: United States & Canada only