Slow coolant leak. Any ideas what's wrong?

[KapitanBlood]

The kit from Lucky 8 has a aluminum REAR crossover pipe but a plastic FRONT crossover pipe. Is the front crossover plastic a concern?

 

[BBLR3]

It will be in about 3 years (No idea if there is a aluminum version available for the front)

 

[itsaguything]

Well... whether you choose the plastic pipe or the aluminum pipe... be prepared that you will need to do the job again. One lasts no longer than the other.
Me, I stick to OE. Afterall, it lasted this long...