I chose one star because there is no negative one. THEY RUINED MY CAR!!!! Danger--stay away. My sister took the car, which I sold her since it was so good, in to "pass emissions" and left over 700.oo poorer and the car, which was a cruiser, left a jalopy. I took it to a reputable mechanic who said nothing on the somewhat itemized list had anything to do with emissions, and the car was now beyond repair. LV auto said they could not refund anything...they said they were trying to get the car in shape ( THERE WAS NOTHING WRONG WITH IT) THESE people ( Vuong) are thieves!!!! DO not know what they're doing and play dumb when confronted. Too late for me, but I hope not for you read more