So about week ago i got a tune up . the mechanic is guy i just met seem well educated about his work. So all i asked was to change plugs thats it Midas and everybody else was gonna charge me up to $450 2.5 hours labor and 6 plugs. So Larry we will call him say oh you will need a gasket for the upper air take manifold . so i says um ok larry so with parts and the 30 mins he did it in only costed $95 could what he had did cause this to happen??? or just wear and tear??????