AMD in Washington has a 600whp b5 S4 on pump gas that runs the 01e and it isnt having any issues. Obviously a good clutch will need to be used for the RS6. The best way to do this is to find a parts car a6 for everything else. This would leave a lot of room for bigger turbos and some higher flowing manifolds!! Maybe I can do this someday lol. Great job on the work again though.