They offer a free diagnostics but you will pay for it, my Infinity needed a full tune-up according to the diagnostics i was charged $500.00. Two weeks later my car was have the same problem, they gave another free diagnostics and now the catalytic converters need to be change wich will cost about $350.00. Really they wouldn't want to get a good review, we are all hard up for money right now Hope it comes back to them. BEWARE read full review »