i downloaded a .wav sound but i dont know how to install it may someone plz help me thx.

What sound in LFS is it supposed to replace?

He may be talking about the HORN files...

its for the engine sound like the blow off valve sound

Oh then place them in the LFS\engine that will do.

but after i put them in engine and i press shift a in game i cant see them and they are .wav. can u plz tell me step by step im kinda of stupid lol

What kinds of sounds are they? Blow-off valve? Starter or Turbo or even gear whine? Any of that beside it there'll be a black dot beside the dot are L and S. L is for load and you click on L and if you wanna save then click S. It's that simple.

they are BOV and when u mean that loading stuff first i put the file in the lfs engine whre all the other engine sounds are. and when ur talking about loading and saving is that in the shift a menu