無意中看到這個東西 覺得很神奇
http://tw.page.bid.yahoo.com/tw/auction/c31242888
請問各位有人裝過這個東西嗎 真的有效嗎
大概可以節省多少油耗 謝謝
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11/05 15:32, , 1F
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11/05 15:48, , 6F
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11/05 20:50, , 28F
11/05 20:50, 28F