No performance benefit. Just slight improvement in sound without pricey exhaust systems.So what / how much advantage is this, I see mention of them being removed, to me "usually" Resonators don't have baffles that would have additional back pressure or flow restriction BUT sounds like not the case here? In looking at some exhaust for the XC70 it looks like there are two behind the CAT, are you cutting out both and are you adding back a bung for an O2 sensor that I think I saw on a system. Also wet and rainy here, not a good day to inspect what I have on the car.
Thank You, mine is very quiet, I will assume still stock, will take a look. I will keep looking at threads for freer breathing performance increases without going too overboard.No performance benefit. Just slight improvement in sound without pricey exhaust systems.