Combine barbecue sauce, maple bourbon, Worcestershire sauce, and maple syrup in a medium bowl and mix well to prepare marinade.

Put all but a 1/2 cup of marinade in a resealable bag with thawed pork T-bones. Reserve the remaining marinade for serving.

Marinate at least overnight or up to 2 days in refrigerator.

Remove pork from bag and discard used marinade.

Season with salt and pepper, then grill over medium heat for approximately 6-7 minutes per side, or until internal temperature reaches 145 degrees Fahrenheit, as per a meat thermometer.

Allow to rest for 5 minutes, then brush with reserved marinade just before serving.