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car. With the Z, the advantage to running race gas is that you can run more boost and timing. If you don't do either, then don't put in race gas. However, if you talk about say my 2001 Audi S4, the boost is controlled electronically by the ECU. If you throw in race gas, the tune I have will certainly advance timing and can run more boost. My car is tuned only for 93 octane, but my Audi mechanic said that he usually gets 30-40 rwhp easily with 100 octane in the tank and no changes in the programming. And I can tell you that my butt dyno definitely feels it...lol So it really depends on the car, tune, and countless other factors. But with the Z, the ECU won't be able to adapt like it can on my S4. So your friend could be right depending upon the car that's being talked about.
TTZMatt: did i ever think id be the guy to sell the z or go kart? TTZMatt: no TTZMatt: but now that ive found true love, i dont care about it anymore TTZMatt: lol - TTZMatt 10/19/07 "It's a little longer and skinnier than the one i bought." - TTZMatt on 10/22/06

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