don't pass this up! i was lucky to get in on the earlier special buy in and i love this thing. the sound is makes when you wind it up is like a drug. of course now my gas milage has gone down, i wonder why? can't keep it below 5000rpm's maybe? this is a great buy from a great vendor.[thumb] [thumb]
Theoretically yes. Generally speaking, and stop me if I'm wrong here, but anything that will make the same motor with the same amount of fuel used more powerful at the same RPM, is only increasing your volumetric efficiency, which (should) increase your gas mileage, as long as you show restraint.