I have gotten all my parts as ordered from ECS. However, when I have called in several times the sales people all had this I know better than you/jocky frat boy vibe that I didn't like.

You might try Pelican parts, Sonnen Porsche, sunset Porsche/audi or autohausaz, vertex auto for parts.

 

I get most of my maintenance parts from
Pelican or rmeuropean. Try the latter super fast shipping and good pricing.

My 20k cost me 425 for parts and 3 hours labor at my indie. Dealer wanted 1100 or something I do oil changes at the dealer, they "only" charge 200 for those. Adblue I do. 40k I'll have my indie do.

 

I am here to help if you ever need anything.