I have a 2014 GT and this is my first manual car. I was told the car had a Calimer transmission installed right before I bought it...

2nd gear was grinding every once in a blue moon but it just kept getting worse and worse over the last 2 months since I bought the car. Today it started grinding every single time... I can't take it anymore!

I am assuming that I need to buy a new transmission but I don't know where to start. The only place I know that sells upgraded transmissions is Calimer...

I just did the MT82 Salute... help!