It is a "guy thing" isn't it? No matter what the motor some of us, Myself included, in my younger years, had to make it go faster, develop more power, sound better.When un leaded came out we cut out the filler cap to accept the "leaded" when the Cat converters came out we cut them off and trash canned them. Then they would make a better motor and we would start all over again.We just need to squeeze out a few more HP ..a bit more torque..get away from the light or up the hill faster than the other guy. Wish I had all the $ I spent on that good stuff back. It's a guy thing...