On my 05 s60 2.5t : id like to install a boost gauge/pillar pod, can anyone tell me what they are using or have used? Thanks very much

Hello. I am new to Volvo, as of last month I bought a 2005 S60 2.5T -never owned or even driven a volvo before that. I can't believe what ive been missing out on all these years, I dont think I'll buy anything but Volvo from now on. Okay, so when its hot outside 85-90 degrees, she tends to chug a bi...