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People using NGK 3521 CR9EIX Hyper IX spark plug?

Matthew457

Expert
Joined
Apr 6, 2015
Messages
372
Location
Peg
Country
Other
Snowmobile
Yamaha Nytro xtx
Anyone running these plugs? .032 gap, looking to get them for my 2012 Nytro xtx

0389F956-424D-44FE-AD5F-FA8A1AF288EE.png
 

been using a set in my 11 apex xtx for the last 3 seasons with no issues yet.
 


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