[Baffler]

Thanks for that!

Don't know why Volvo didn't fit a boost gauge to the TDI like that on the T5? Possible safety issue, I guess, as it would draw from the brake servo vacuum.

I'd like to up the power at some point without altering the standard set-up too much. I reckon I'll eventually go with one of these tuning modules, fit a boost gauge to monitor boost, or just wait and bring it to someone who knows how to properly map these ECUs.