<div class='quotetop'>QUOTE(99LoweredSierra &#064; Mar 10 2007, 12&#58;07 AM) [snapback]85902[/snapback]</div>
I am interested how accurate is it?
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The few time I used it, it seemed very accurate as far as MPH, RPM etc. I hadn&#39;t been to a track or dyno to compare the HP, 1/4 etc. You have to do a little configuring when you first install it like entering vehicle weight, number of cyl, etc. then calibrating the rpms.

You can do a Google search for reviews. Here is one from car and driver.