I have a G-TECH PRO used a couple times works perfect and mint condition plugs into your cig lighter and comes with suction cup... the g-tech is very accurate i did the same quarter mile time at the track and with the g-tech... i bought it for $139.99 from summit and ill let it go for
$60 shipped 2-day air (paypal or money order) same day shipping... once money is paypaled!!!
Any Questions contact me at DRAG3TURBOSI@aol.com