TT Gasman:
As to quality tuners : Ruf, Manthey, RS, 9FF in no particular order. All are expensive, I am partial to Ruf, but you get what you pay for IMO.
I have no info about how good is 9ff.... really on pair with rs tuning-ruf-manthey?
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Dedi
La vita è troppo corta per non guidare italiano.....