Not a current priority, but expecting sooner or later to hit the limit (how much?) of the stock pump:

What flows do the stock pumps have (and maybe their respective practical HP limit):
- S4 2.7T
- RS4
- RS6

 

any reason why youre going with oem pumps? walboro, bosch and deatschwerks seem to be the popular choices nowadays. i dont seem to see people using the rs4 pump any more.

never even considered the rs6 pump, but sounds interesting. i'm not too versed on fueling, if you havent realized already.

 

Just getting baselines for comparison.
All the usual suspects just list their aftermarket pumps (034, etc.).
But 500 lph tell me more when I know my stock pump has (180 lph?).

Also inline vs. tank drop in with respect to PITA factor would be helpful.