2014 X1 "Toy" Improvement Ideas for Xmas

2014 X1 N20 with highway miles - bone stock. Looking to "tweak" it for better stance and performance over time shade-tree mechanic style.

Assuming working slob budget - what would you do based on your X1 experience?

Which Decent Quality of the following would you black friiday?

• Catless downpipe
• cool air intake and pipe
• Wheel spacers
• Tuners

See a bunch of the above on marketplace too but would like to do new if possible.

Cheers!

Swampy