Just Bought an Apexi S-afc2
#2
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GL man i would suggest starting with a -15/20% or so for you base on idle tunning. Getting it to run NA was no problem for me boost was what frustrated my efforts. But since you have a non return fuel system in the 99 it should be perfectly tuneable as the pressure doesnt ramp up and you also get to use the Variable tps very nice. Install is cramped but just as simple as they make it out to be. I hope you have a few extra electrical splice/but conectors the ones supplied arent the best in my opinion, GL.
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#8
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Well just did some reading and BEGI uses special fittings and adapters in order to utilize the fmu, and pretty sure it is a returnless system on 99's. Also, on that pic I think they used BEGIS fuel system which I believe makes it a return style fuel system... not sure tho.
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