what's up everybody? new to this forum and new to the world of audi ownership. just bought a 2001 A4 1.8T Quattro. anyone have any links of retailers websites to visit besides lltek. as many as possible, i like alot of options. and by the way, what in your opinion is the best: 1.chip 2.Exhaust 3.BOV/diverter 4. C A intake system . Thanks in advance!!!! cheers