In this video I cover the two upgrades I made recently to my Ender 3v2. I went with the Biqu H2 v2.0 Extruder and the Dual Z Axis lead screw kit. Below are amazon affiliate links to the parts I used in this video.

Dual Z Axis Lead Screw Kit - https://amzn.to/3c2i1fD
Biqu H2 Extruder - https://amzn.to/3uDJLOq
GT2 5pc 20MM Timing Pulley - https://amzn.to/3nSwfT2
GT2 610mm 2pc Belt - https://amzn.to/3uDJXx8
5015 Blower Fan - https://amzn.to/3RmDosA
M4 screw assortment kit 400pc - https://amzn.to/3RmDosA
M3 Screw assortment kit 540pc - https://amzn.to/3ADIxGs
iFitit Precision Screw Driver Set - https://amzn.to/3c3G0v9

Ender 3 v2 Biqu Mount - https://www.thingiverse.com/thing:542...
Blex Jet Fan Duct - https://www.thingiverse.com/thing:525...
BL Touch Mount - https://www.thingiverse.com/thing:489...