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tdi tuning

  1. Modifications & 'How To' Guides
    I have been recommended TDI Tuning box Does anyone have any opinion on their systems? I know people use DTUK on here -any better/worse? what reasons? thx!
  2. Modifications & 'How To' Guides
    any recommendations for tuning in the west mids without effecting audi warranty? Thanks.
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