That’s a completely different car. I’m sure it didn’t bolt right up without modification.
Body kits take a while to make. Yofer took about 8 months to create one for the 11th gen Civic. Hell they still don’t have 11th gen lowering springs. Everyone is using 10th gen ones still and that car came...
It’s broken in. The engine note is more audible but that’s all. No vibrations in the cabin. Make sure your bolts are all torqued to factory spec too.
These platforms including 10th Gen Accord, Type R, 10th Gen Civic and the 11th Gen Civic are all prone to heat soak. That's why upgraded intercooler, Downpipe and bigger charge pipes is a must if your tuning and want back to back performance to keep IAT, IAT2 and ECT's down.