DO NOT trust this shop owner...I had a smog check and said it would pass....He will call me with the estimate..and I said yes to do the work. Later on over 3hrs he said it would not pass cause it was overheating the engine and would need more time and more work...Well on the estimate he did not made me aware of this and well I lost aprox..$200 since I ended up with more problems. His english is not very clear and uses it to his advantage.