Here at DOGOOD we stock more than 10, 000 pre-bent lines. Each line is produced using measurements from a factory original line on one of our CNC benders. Spring wrap is included on any line that had it from the factory and each line is double flared with amazing accuracy with the correct size tube nut. Keep in mind that most of our line sets are made to factory specs and will screw into factory blocks that are mounted in the factory locations. If you have modified your vehicle and changed the blocks your lines screw into, our reproduction lines may not work. Call us any time if you have questions about compatibility!!