Hello there, as you reading my 355 has lost its Sound.What it can be??? i have no idea my headers are just refurbished from Capristo Bybass Valve is also a Capristo one(works fine),the Exhaust is Original and about a Week ago l installed the headers with New Rings(Donuts)my Cats are Empty(a long time ago) and its everything absolutely tight,no holes no lose of gas. And yet i hear a Mercedes with Sport exhaust and lm really tired of it. So does anyone here had the same Problem,or have anyone an idea of what it can be? Many thanks
