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Discussion Starter · #1 ·
Hi,

Fantastic forum you have here :) I have twin boys of 15 years who lack more power on their 2020 YFZ450R machines - What do you recommend?
We drive with complete HGS exhaust, no air file lids, ALS delete, and then they are rolled / driven into the dymo. These are standard CDI boxes that are open and have a new program, on the dymo they have 42,1 hp.
It's hard to keep up with Honda and KTM when we drive races - hope you can help

Thanks in advance:)
 
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