Well, I recently just had a custom freeflow resonator done because my car had 2.25inch pipings. I had it made at FREMUFF in San Juan and costed me P1500. But the resonator's piping is a single piece instead of the typical welded on to the resonator's body so its more resistant to the bending forces that cracked my older resonator from Nodalo's.

Comparing the sound with my old and the current resonator, my car is quieter now.

I remember Nodalos resonator typically costs around P800 to P1200 depending on size.

BTW, CPM Muffler House also has a good selection of mufflers & resonators.

BTW2, FREMUFF San Juan typically tends to overcharge a bit so be prepared to haggle for the price.