i have a 99 s80 2.9, i opened the airbox and left it open, i drove around a bit and when i ripped it, the sound was amazing! i want to put an intake but use the stock pipe. i just want to buy a filter and replace it with the airbox. has anyone done this yet? what do i need?

 

anyone?

 

It can be done but you will be sucking hot air and loosing some performance.

 

Yeah, bad idea dude, sorry