I had the same shipping delay issues a few weeks ago.

Had a road trip coming up for a wedding. Had to leave on Friday. Called ECS Monday to order parts, brakes, a few gaskets to repair oil leaks, fuel filter, spark plugs... paid extra for 2 day shipping so that everything would arrive Wednesday, giving me all day Thursday to repair my car. Well I get an email Wednesday notifying me that my items just shipped and would arrive Friday. Awesome, so I had to rush all day friday to get my car ready, ended up arriving at our destination late. Nothing like paying an extra 70 bucks for two day shipping, to have your items arrive 4 days later.