Towing Cap

The best place to get that answer is your owner's manual. In lieu of that...

All vehicles may tow a Class I trailer provided the Gross Combined Weight (GCW) is less than or equal to the GVWR shown on the Safety Compliance Certification Label.

look at the door sticker it give you the GVWR and go buy that. you cant raise the towing rate per say. its what it is till you trade up to a bigger truck or one with a higher cap.