If the ipd one is the Snabb one then buy from FCP EURO as Ozvolvo has a shipping discount with them.
Eight 8 Fabrication (or 8Eight..) does fantastic stainless downpipes, is getting on to do intake pipes as well, he is known in Volvo circles for his great quality work (I'm a trades TIG welder , pipe fitter and Boilermaker I know his stuff is great) he is going out of his way to accommodate and help Volvo nutters with builds as well. Worth supporting him. He is on f/book and insta, must have a website by now.
I ask about the P* as I have Adams previous Heico ECU he had on his XC60T6 over the P* tune before going all out with better turbo,injectors,fuel system etc and Hilton liaised with him and @VolvoMike of Volv of Adelaide who did the work. I'll probably sell it as I'm going a different way now.
I currently use a TDI TUNING box and it makes a hell of a kick in the backside for sure , even with partially blocked CAT....
The Volvo airbox is great until you go with massive upgrades, Adam still uses it and the boost piping upgrade onto an Elevate intake manifold.
Big downpipe is the first upgrade in the path. Then full exhaust.
Do the intake if you want more noise I guess.
A Volvo 3.2 i6 top cover is a better cover than what Snabb have , looks great with elevate intake too.
