OK, the Pro line sits higher than the Sport line. Ths Pro line will keep you from bottoming out your nose most times if you have a after market front bumper installed. If you have questions on the proper springs for your car then give their tech guys a call.1-800-222-8811. They help me a bunch in my selection and can tell you what you'll need and what works. I opted for the more expensive route and bought front springs for an Inegra and rear springs for a Civic.