RX300 Performance chip???
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RX300 Performance chip???
Hello I just wanted to poke around and see what everyones thoughts were on some of these "performance chips" I found a few here but the method they use doesn't seem safe, the first one here changes the MAF reading to make the engine think its cooler than it really is and the second reprograms all together. Let me know what your thoughts are, or any other options for increased fuel economy.
http://www.ebay.com/itm/Performance-...item4d00209fa1
http://www.ebay.com/itm/1999-99-Lexu...065332&vxp=mtr
http://www.ebay.com/itm/Performance-...item4d00209fa1
http://www.ebay.com/itm/1999-99-Lexu...065332&vxp=mtr
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