THIS IS NOT AN APP.
Viper Speedo is a logger layout for Dynomaster, the dyno and drag racing app. You must have Dynomaster installed. The layout provides a black bezel, black speedo face, and emblem.
Apps from the same developer
The best dyno and drag racing app for Android!
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Unofficial Quick Select Mobile App.
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Androlicious.com is a website that shows applications and games from Android Market. You can download and install apps and games directly from Android Market using an Android phone or by using WebConnect mobile application.