This is a discussion on "Progressive Install on an Audi S4" within the Install Pics forums. This forum, and the thread "Progressive Install on an Audi S4 "are both part of the Videos & Pictures category;
I did an install on an S4 with k04/RS6 turbo today. Dual 5 GPH nozzles.
We used the factory washer fluid bottle as the reservoir. I will have before and after data logs to post in the next couple days.
Here is a graph showing that through just a short 3rd gear high rpm pull the car is almost .1 seconds faster. This is still at the same boost level. Running a full quarter mile may show .25 improvement. Not bad for under $305.