Steeda tends to be Safe with Tunes. They set their Tunes to perform but at the safest degree. Nothing wrong with them, they just never push the Tune much. That's not saying that your car can't handle it, they just play it safe. I got a Custom tune on mine. Where it has full mods on the Tune, everything: Shifts, Gears, Ride, Sound. And yes, Gears make a Huge difference with Tuning, it has to be the correct Gears dialed into the Tuner or your Speedo with be off. It's a easy fix for the shop, all they do is dial in the right Gears, then you're good as New.