The Road Magnet Tiburon Springs were developed on the Tuscani version and fit the standard Tiburon for models from 2003 to 2007. The drop is 1.8" and the springs allow the car to handle incredibly tight.
Every stock Mazdaspeed I've seen looks like it has a bigger gap in the back. I think that when you lower your car on any springs the extra neg camber makes the rear gap look bigger than it is. Maybe that's why RM settled on a 1.5". I know that Johnjay911 (M3R member) was the 2010 Mazdaspeed tester for RM back in March (that's a pic of his car on the website) and that RM had him come back twice to make sure the drop looked good after the springs settled in their final position. Sounds like your torn between coilovers, H & R and Road Magnet. Stop losing sleep and order the RM's.
