I have a 1998 S70 with 179,000 miles on it. I drive 400 miles a week on interstates. Any performance advantage to having a cold air intake system installed?

 

Honestly not really.

Plus there is no CAI made for our model Volvo. There is a Short Ram Intake (SRI) which I own.

While it provides great sound the performance gain isn't great. You may see 1-2 MPG more average a trip...