Advice: Ways to improve NVH levels on my 2021 Innova Crysta diesel

For a quieter ride, you’ll have to get the entire floor damped.

BHPian gopalnt recently shared this with other enthusiasts.

I have the Toyota Innova Crysta 2021 Diesel AT. I hear a lot of engine and tyre noise inside the cabin. I have Michelin Primacy 4 tyres for the car. Is there a way to add additional insulation to the car to greatly reduce this noise? How can it be done and who in Chennai can do this perfectly?

Here's what GTO had to say on the matter:

You've only just gotten the Innova, so with time, you might get used to the engine sound.

As BHPians suggested, damping is your 2nd best friend. The real best friend (in noisy cars to me) is the volume knob of the audio system. Put on your favourite tracks and crank the volume up. It's why rattles never bother me, they are always drowned out.

Here's what BHPian Shreyans_Jain had to say on the matter:

Innova has exposed wheel arches, which greatly contribute to the road noise. For a quieter ride, you’ll have to get the entire floor damped. You can also consider adding damping insulation on the doors and roof as well. Depends on how much you want to spend.

Refer DBHPian LeoShashi’s excellent thread on damping his Ertiga.

Here's what BHPian ike had to say on the matter:

If you are in Chennai check out Gannu's GT TDI. I sat in it after it was damped and it was as silent as the graveyard. Maybe you could check out Gannu's ride too.

Here's what BHPian hserus had to say on the matter:

Innova’s engine sounds like a tractor with Toyota oil. Get a good synthetic that matches the spec and the noise is considerably damped.

Check out BHPian comments for more insights and information.