Once you've decided on some Suspension Kits, like the FRPP, STEEDA etc., try to talk to some knowledgeable folks, modification shops and/or Reps where you might buy the kit from and see if they ask questions about the car and how you plan on driving it. Suspension upgrades, good ones, are like performance tunes, no two are really alike. Every car is a little different and each driver likes their suspension / ride a certain way. Don't think you have to go with a Kit, even though it might be the cheaper route, it may not always be the better route. Mixing Steeda, FRPP, M&M etc. components is not uncommon. Its about getting the car as perfectly set up as you can. Again, its all about how you plan on driving the car that begins the process. Good Luck.
IF MY CAR WENT AS FAST AS THE MONEY I SPEND ON IT, I'D WIN EVERY RACE