Road Noise 370z nismo

sgosh

Welcome! Noise or not, you will love the car so much during the first few weeks or ownership that you won't be bothered (much) by the road noise. A few things to note:

- Transmission whine is intense when the car is new, but this diminishes within a week.
- The most road/tire noise appears to come from the rear wheel-wells, which are a mere ~2 feet from your head.

This week, I decided to DIY some insulation in the interior of the hatch, and I ran it up over the wheel wheels, and even up the back wall of where the hatch meets the trunk.

I used (don't flame me) industrial black rubber underlay that's used underneath laminate flooring - specifically designed to reduce noise between floors. I fixed it in place using Gorilla Tape, and sparing amounts of rubber (contact) cement. Easy to remove should I need to later.

The results were surprisingly good. All of the higher frequencies while driving have been decreased substantially, and only the lowest bassy-rumbles of the exhaust make it into the cabin. In fact, I notice much more sound comes from the front of the vehicle after this DIY test.

It's not Acura TL quiet; the car will always be a little loud inside. But the harsher sounds, the ones that interfere in the frequency range of speech, are pleasantly attenuated.

That's right: "better-half friendly" stuff!

A little elbow grease, and some half-decent sound-deadener will go a long way.

Then, new tires.

Enjoy your Z!

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History: Pontiac-> Honda-> Datsun-> Toyota-> Chevy-> Acura.
Currently: Acura, BMW and Nissan.