Anti-surge ports and polished compressor housing are upgrade options. The kit is not designed to require the anti-surge ports, so there is no performance benefit to them. They simply offer the options for appearances.

Btw. The 10 hours of work included a lunch break, time spent gathering tools and setting up my work area, nearly 2 hours of driving around to the dealer to order a replacement fuel line and to other stores to get other stuff I needed. Then there was also the general "slow and steady" approach.

I had a lucky break. My fuel line got ordered from a Denver warehouse which is 2 hours behind me. It met their shipping cutoff time and the overnight shipping got it delivered this morning!

Things are falling into place to complete the install tomorrow.