Dose anyone have a recommendation for coil overs, for my 98, bmw, 740i e38, BC or ST,? Do I need a camber kit, upper
shock tower support under my hood?
It's good you asked since not all coilovers are made alike.
You do have a 20 year model but I'm sure latest makes should be good enough for you.
Some of the best brands for a coilover include,
1. H&R Street Performance E36 Coilovers. It is a top-brand and the coilovers are a monotube construction.
2. Megan Racing Euro Street Coilovers. This is also a popular choice in Japan. They also have a monotube construction with 32 adjust levels.
3. KW Variant 3 E36 Coilovers is a twin-turbo, which is quite expensive but one of the best quality coilovers in the market today.