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  1. Need help tuning HMF optimizer with Yoshimura full exhaust and KN airflow with lid

    Raptor 700 Modifications
    Hello, Cousin bought a 2007 with a Yoshimura full exhaust , kn airflow filter (no airbox lid) and HMF optimizer set up. He wants to convert back to stock because he' doesn't care to have the extra stuff, I want to add them to my 2014. Can we simply remove his exhaust, header, airbox and hmf...
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