I'm recently the proud owner of the beautifull A4 Avant 2.5 TDI quattro...
Can anyone give me some advice regarding chiptuning the 150bhp 2.5 TDI A4
(built end 2000)? I've already 100k miles on it. Does it make sense? Are
there any possible damages after this mileage? What are the costs? Expected
gain in bhp and torque? Any recommended sites? Any suggestions are helpfull
regards from Holland