i just ordered one, the price of it did scare me a bit, but i figure i can use it for awhile, then possibly sell it after i learn better how to operate my car for best results. the price is hard to swallow when looking to save money on gas, and spending alot of money to save money. i do get that over time it would compensate, but at the moment im too lazy to add up how long that would take hahaha
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