Hey guys i just need your help real fast to know if this is a good buy, because it is a 8 hour drive and I called him and he said one of the cats has to be replaced and the CEL light is on because of the chip, so please guys message me and let me know if this is a good buy

i have a 2001 nogaro blue s4 with a little under 75,000 miles it has a sunroof and all the options you would want it also has a neuspeed exhaust a power chip and a abd racing big bore intake. im asking 12,000 or best offer

 

that was so confusing....

 

Do you have a vag-com? I would definitely vag-com it first to see exactly what codes have been thrown.