Hello everyone, Back in November 2019 I bought a Eurocompulsions V2 intake for my 2017 Alfa Romeo Giulia TI. The car ran amazing and the intake really woke up the car. I didn't run into issues until about mid January. I had a recall that was taken care of at the dealer for the catalytic...

I know a lot of exhausts can be bought with or without valves, and I'm wondering if buying one without valves (both louder and cheaper) would throw a cel? I have the forza installed if that makes any difference.