• Plug-and-play throttle response controller
• Sport mode (up to 30% faster response) and Race mode (up to 60% faster response)
• 9 selectable programs within each mode
• No wire cutting, no interference with ABS or other systems

Solving Drive-By-Wire's Biggest Downside

Modern automobiles have replaced conventional throttle cable technology with an ECM that translates pedal travel into electronic signals, a system known as Electronic Throttle Control or drive-by-wire. That system has an unfortunate downside: delayed throttle response and subdued acceleration that creates real problems in situations like uphill starts, quick gear changes, and overtaking. The Sprint Booster aims to overcome that throttle response delay for ETC-equipped vehicles, providing crisp, on-tap acceleration whenever the driver wants it. That's the kind of detail that separates genuine engineering from a basic replacement part.

Two Modes, Nine Programs Each

Installation is simple, plugging directly into the OE connector located behind the accelerator pedal with no wire cutting and no interference with other systems like ABS or electronic injection. In Sport Mode, throttle response improves by up to 30 percent, while Race Mode pushes that improvement up to 60 percent, and each mode includes nine selectable programs ranging from least aggressive to most aggressive. That level of granular control lets you dial in exactly how sharp you want throttle response to feel, rather than a single fixed setting. It's a small distinction that makes a real difference once you're actually using it.

Straight From Subispeed

A genuinely adjustable throttle response upgrade for 2006-2026 Forester / 2006-2026 WRX / 2006-2021 STI — plug-and-play installation with real, selectable aggressiveness levels.

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