Skunk2 is proud to introduce the first-ever, CNC-machined, big-bore drive-by-wire throttle body, debuting exclusively for the ’06-’11 Honda Civic Si, with other applications to follow. No other throttle body manufacturer has been able to crack the drive-by-wire code. Until now, drive-by-wire tuners have been forced to rely on boring their OEM throttle bodies, which allows for only minimal airflow improvements. Skunk2’s unique electronic drive system—the first of its kind—is paired with the finest throttle body technology in the industry. Like all Skunk2 Pro Series Throttle Bodies, its new drive-by-wire units feature CNC-machined, 6061 aluminum construction, and an 80mm inlet and 72mm outlet in both hard-anodized and Black Series finishes. Best of all, there's no core exchange required. Simply transfer your original '06-'11 Civic Si throttle body sensor cover, motor, bolts, and idler to your new Pro Series Throttle Body for flawless performance. Each Pro Series Throttle Body features proprietary internals that, when matched with the factory sensors, allow for increased airflow but without sacrificing any of the smooth throttle characteristics Honda owners expect. A larger throttle body is key to producing additional power throughout the powerband on modified engines with increased airflow demands. Skunk2’s all-new, Pro Series Throttle Bodies for drive-by-wire K-series engines feature a large bore, which results in significant horsepower gains throughout the powerband on naturally aspirated applications and even more on forced induction ones.