Here's where it gets kind of tricky . . . with the filter and exhaust mods, the engine spins up quicker, acceleration is a bit faster, and depending on conditions, highway rpms can be lower or higher. If that makes any sense. The engine will red-line quick and if I ease off the throttle some, then speed stays the same and rpms drop. It's like the cvt changes gears. It's hard for me to explain as I am not a mechanic. Other people who are more engine savvy can address things like back pressure torque when all the rubber bands are wound tight and . . . well, you get my drift.
Mileage has gone up just a tad, however, I am not all that concerned with mileage. It's the fun factor that counts.
