How to convice my grandad that my NXR doesnt raas

[Ghost]

I'm going to Stellenbosch next year and I got a free place to stay. At my grandparents' guesthouse.

The problem is that my grandad thinks all motorbikes are noisy. As a result of this he won't let me take the NXR to Stellenbosch.
My NXR still has the standard exhaust on.

Now I must make a plan to convice him.

Any ideas?

 

[EtienneNXR]

 

[BlueBull2007]

 

[Wabbit16]

 

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[espresso]

 

[Eisbein]

 

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[Thump]