Just had my 2023 WT done. Very initial but the the throttle response seems way better. I think I have 91 octane in the tank currently. Haven't even tried Sport Mode yet.
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That is the most odd feeling to get use to. I was like..."Is this thing spinning clutch packs"...It's a fatal flaw of the 10 speeds.I honestly just want a tune for my 2.7 that removes some of the TQ management so it doesn't feel like the bitch is slipping up to 30mph
Definitely,Is +1.5-2.0 mpg negligible? I don't know about a 7.5%-10% increase in fuel economy being negligible.
With the "fart can exhaust" I can average over 22.5 mpg at an average speed of 75 MPH over a 300 mile route through the Texas hill country. My best run averaged 23.5 mpg, largely due to the exhaust. Without the exhaust, my mileage drops to around 20 MPG over the same trip (this last trip was right around 19 MPG) on factory tires 32".
I agree, it's obnoxious, but you are wrong about the fuel use. I don't have any dyno numbers, but you can feel a little more pep in the engine. The factory muffler is excellent from the standpoint of mitigating sound, but it comes at a cost.