Originally Posted by ElectricAL
While 5 HP may be a lot to you, it is not to me. Sure, get the AR103s if you want the most power out of the engine (although for a significantly shorter life of the plug) but just don't go thinking that 5 HP is a lot. Unless if you're goofy.
5 more pounds of torque is nice though.. now that's something you can feel during city driving
A few years ago, I went to the gym for several months and lost 30 pounds. That must be worth about 1% more fuel economy in the city.