Here is the air filter proposed by HIFLO FILTRO HFA5013 for your maxi-scooter KYMCO Dinkstreet, Downtown ... 300cc 4T from 2009 ..
This air filter has the same dimensions as the original but can better breathe your engine.
No adaptation or adjustment is nescessaire. This air filter is of course much cheaper than the origin. It will allow you to review your bike at a lower cost.
 
Mounts on :
 
KYMCO 300 Dinkstreet Scooter, Downtown i (V20000) 2009 
 Scooter KYMCO 300 Dinkstreet, Downtown i (V20000) 2010 
 Scooter KYMCO 300 Dinkstreet, Downtown i (V20020) 2011 
 KYMCO 300 Dinkstreet Scooter, Downtown i Abs (V20010) 2013 
 KYMCO 300 Dinkstreet Scooter, Downtown i Abs (V20020-V20010) 2012 
 KYMCO 300 Dinkstreet Scooter, Downtown i Abs (V20030) 2014 
 KYMCO 300 Dinkstreet Scooter, Downtown i Abs (V20030) 2015 2016 
 Scooter KYMCO 300 Downtown Abs 2010 
 Scooter KYMCO 300 Downtown Abs i 2011