Hi everyone, I’ve recently bought an a4 b7 1.9 tdi pd115 and thought I might aswell do somewhat of an exhaust on it I used 2” exhaust pipe and I’ve gutted the cat/dpf and replaced the muffler and resonator with pipe but it is till not very loud, it does have a nice turbo whistle and a bit of a grunt but no where near what I was expecting. Do I need to upgrade to 2.5”?