Exhaust noise

[donnylad]

I am wanting to take my car on track a few times next year.

 

How do I test my sound level before? is there a phone app or would i need to buy a proper setup or get somebody to do it?

 

Thanks

[aucky]

Try a desebell reader app

Sent from my LG-D855 using Tapatalk

[Rps]

Decibel*

[Scoobyghost]

Apps are notoriously inaccurate.