Fixing up the Audi A4

Hi guys,

I wanted some opinions on potentially upgrading my headlights and taillights, which are due for replacement, to custom headlights. I was looking into creating somewhat of a more modern Audi with LED lights and also darkening the look with black base headlights and taillights with a slight tint.

Spyder Auto LED Tail Lights - Black

Audi A4 / S4 DRL Light-Tube LED Projector Headlights

I also had a question as to if this would hurt the value of the car by adding custom replacements compared to stock replacements? I plan to sell the car in about 1-1 1/2 years to upgrade to an Audi S6.