intake boot

Hello, I am having a problem finding right hose for my z3. I am currently replacing intake manifold gaskets and have noticed the hose is cracked where it meet with the air intake pipe. I have wrapped hose with tape but did not help at all. Also obd shows multiple cylinders misfire I assume that...

For my first BMW Z3 3.0i 2001 and I am looking for radiator hoses and intake boot. For the intake boot I found this nice looking silicone boot that I ordered and I am waiting delivery: https://www.ebay.com/itm/174895797319?var=474052356345 For the radiator hose I cannot find what fits...