Several years ago when the original gimick device came out I read about it in a "Sport Truck" magazine where the magazine put one in a 97 S-10 I think. Running the 1/4, with it in, they supposedly picked up 2/10s. They took it out and lost 2/10s. Put it back in and picked them back up. If I remember right the S-10 was a 4.3 with a 5-speed, CAI, exhaust, programming, drag radials, and ran a 15.3 without it and a 15.1 with it. Could just have been propaganda to promote it.
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