Want an extra 4 whp? No mod needed.. just change your gas.

[theking]

I don't think a car really response to higher octane unless the car is "tuned" for it. Even if there is a small advantage a person still isn't taking full advantage of it and is probably wasting more money for the benefits they're getting from higher octane gas.

So the question is...is the extra money worth 4 HP? Probably not. Get a tune though and that could easily be doubled or tripled.

Well put and I agree. My mother-in-law used to always put premium unleaded gas in her Honda Accord that's built for regular unleaded in stock form so I educated her about it and that info stopped her from "wasting more money"...