Now Im quite new to tweaking turboed engines and having just bought a minted 08 plate S3 with very little miles I want to take it a step further on the power front. I have selected the stage 1 remap I want but found this item on e-bay.
Now in my eyes this will not give any more power as it will limit the amount of boost available up to the max that your car is mapped to.
Manual Boost Controller Audi S3 S4 RS4 RS6 1.8 Turbo TD | eBay
If anyone thinks this IS a good tweak option then let know but I cant see how.