In A Shallow Bowl, Combine Chili Powder, Brown Sugar, Garlic Powder, Onion Powder, And Salt. Sprinkle Both Sides Of Pork With Spice Mixture. Prepare A Grill To Medium-High Heat And Lightly Oil The Grate. Grill Pork Until Internal Temperature Reaches 145 Degrees F, 4 To 5 Minutes Per Side. Grill Pineapple (If Using Fresh) And Jalapeno Until Lightly Charred, 2 To 3 Minutes Per Side. Remove Chops From Grill And Let Rest 5 Minutes. Meanwhile, Dice Pineapple And Finely Dice Jalapeno. In A Medium Bowl, Combine Pineapple, Jalapeno, And Lime Juice. Season To Taste With Salt.