Motor

Darkgentleman

Good morning fellow Z owners.
Here is my story. I have a 2016 370z nismo I installed k&n typhoon filters and Invidia full exhaust with test pipes. Catalytic converter delete. In the final modification was a Bully Dog GT tuner with three presets for my particular vehicle. The vehicle ran great for 2 weeks. Then all of a sudden the motor started to knock ping and hesitate. All of these modifications were installed by a professional shop. I returned to the shop and told him what was going on with my vehicle. The mechanic there could not figure out what was going on. So he told me to return the vehicle back to the Nissan dealership to see if they could figure out what was going on. 2 Nissan dealerships refuse to work on the car. So now I am in limbo not knowing if my motor is destroyed or not. The vehicle seems to run but the idle is rough and stalls and pingredients. My question is was I supposed to get this vehicle tuned instead of putting that Bully Dog GT on my vehicle? Why is my motor destroyed? This whole Saga begin early July 2016 now we are headed into August and I still have not had my vehicle.