Seller notes

KTM OEM Part 55405907001 FMF Factory Fatty expansion chamber This listing is based on part, price, and inventory data that is provided directly from the OEM. Unfortunately, all of the key information and image/description content that you find with aftermarket products does not exist for most OEMs. Efforts have been made to provide the additional diagram and fitment information however, it is not perfect. When purchasing this part you should look to the OEM brand and MPN that is referenced in th...

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