NVH, or Noise, Vibration and Harshness, is the study and modification of the noise and vibration characteristics of vehicles, particularly cars and trucks. - Wikipedia, Feb 2013.
hai evry1..i have smthng to ask u all..now im using viva 1.0 auto,so i plan to use microtech to seek more pwr from this dvvt engine..so i need u all give sme advse or opinion it is better or not using microtech..how...