Hey all I am new to this forum but have been playing with turbocharged vehicles for a while (years), I've recently purchased an RS6 C5 and wanted to know what has/can be done to its turbos. I originally planned to upgrade them using Garetts but after realising the space issues have opted to live with what is possible by using the standard housing etc. I have done some research already and have noticed that the general consensus is that the 2283 wheel is the best option, using a billet version which has the extended tip technology being the best to use but I wanted to hear other ppl's thoughts and impressions. I also have learnt that the wheel in questions 2283 comes form the S3 8P turbo, please someone correct me if this is incorrect and I have noticed that some companies are offering upgrades to that turbo which produce 400hp again I am not sure if its the same turbo etc but I wondered if anyone can shed some light in this wheel being an option? I would also appreciate the feedback from anyone who is or has used a K04 with the wheels I am talking about. I am also a realist and understand that the power achievable by using the standard housings is limited, I am ideally looking for a pair of turbos upgrade which will have the ability to flow 300hp if possible, anything above that is a bonus. I will also be doing other work to the engine which are not simple bolt ons to assist in achieving these numbers such as porting, valves etc. Thanks again and I apologise for the long thread and look forward to ppl's replies.