yes it does,it incresing the horse power and controlling the air fuel ratio to save more fuel,u will feel it when u r driving...and tis stuff oso can control the i-VTEC kick in timing,u really will feel the vtec in roaring when the i-vtec kick in.....Bro, does the Apexi NEO controller help in increasing the power of the car? I heard from somewhere someone said with this K20 i-vtec engine, it doesn't do much...is this true?? just wanted to find out more about these gadgets thingy...
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thanks bro