Where are all the modded C5 RS6 at? 500awhp to 800awhp+?

[fbatwork]

Have you looked into the EFR turbos, likely something that fits and has built in waste gates. Nice technology, very good performance...

[RS6Goals]

Have you looked into the EFR turbos, likely something that fits and has built in waste gates. Nice technology, very good performance...

I have not but i was not planning on using internally gated turbo since they tend to get in the way.
Its a bit for pricey as well.

Im thinking along the lines of gt3072 / t3

Cold
inducer 55mm

Hot
Inducer- 60mm
Exducer- 55mm

Should be good for 600awhp and still capable of 800awhp when pushed.

another im looking at is gt35 / 61mm / t3

might be a bit laggy though.