Powerchip offers a 91 Octane chip and a 93 Octane chip, I am running the 91 Octane chip.
I do find it is more sensitive to the type of fuel I put in, Chevron, Shell and Sinclair seem to be the best as far as power, but I do not notice a difference with fuel economy between the different fuels.
I am going to get my vehicle inspected this month and I am curious if it is going to affect my emissions, but of course I let you guys know.
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1999 DII
2001 DII (w/ACE)
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