TCP'S upgrade kit when you have uppers & lowers & struts & all you need is the coil over shocks & springs & the two mounting adapters & the price went from $1100.00 with tcp to $1789.00 with M+ There should be a investagation. Every product they have has taken the major jump. It's a fine product that tcp has with excellent workmanship, but if they make it with these prices, then its good night Irene. Thanks for looking. FRAN