I just ordered a knock off version of the pedal commander on Amazon. $70 vs. $300. I can't wait to try it.I second the plugs and wires. I bought mine last summer in July '20 w/ 118K miles. I just finished replacing my plugs a few minutes ago (122K miles) and the engine idles about 50% smoother and the acceleration is smoother and improved. Looking at the plugs, the PO did not replace them at around 100k miles like he/she should have. Glad I did.... now, I need to get wires and a coil. Should be simple to swap. If I had a 3.6... I would've had to take the damn intake off I believe. Almost glad I have the 3.8L, but have driven a 3.6 Pent and I do love that too.
And I can definitely attest to BLACKJKU's recommendation of a Pedal Commander.... definitely helps you from the 0-3000 rpm range and maintaining speed on the slight grades on a long trip.
Good luck with your hunt, you'll love it.