Oh god, may have to pop to cambridge lol. Be good to check out your engine bay too.
Was reading that there are some quality issues with the invidia when the hfcs are added, welds cracking and leaks / splits. Put me off a little but seems only relevant in a few cases. Not sure which hfcs to go woth either, erz seems very popular with the invidia, not that ive been researching at all......
My concern is how loud it is going to be. I love the stillen but want more volume but not enough that it will drone or be too excessive in the cabin.
Do you have any videos, id be very interested then may plan a road trip