Exhaust or PK50

I have a Vespa PK50 with a 112 Pollini kit on. Which exhaust would be best?

Is this one OK?

Racing Exhaust POLINI "Banana" 
for Vespa PK50/S/SS/XL/XL2/XLS
/HP/FL/N/Rush 
steel, aluminium silencer, 
left hand
 

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