NGK Iridium Spark Plugs Yamaha SR400 - BPR6EIX PAR BMC filters are trusted by

BMC filters are trusted by almost every high-level automotive and endurance team in racing - a testament to their quality

intercepting the signal sent to the fuel injectors and changing it

Drop teeth on front/add teeth to rear = increased torque

which will provide actual filtration to the engine oil

NGK Iridium Spark Plugs Yamaha SR400 - BPR6EIX PAR BMC filters are trusted byNGK Iridium Spark Plugs Yamaha SR400 BPR6EIX FITMENT DISCLOSURE This quick reference fitment information is provided to direct you to our catalog information and the manufacturer's information. Consult manufacturer publication(s) and or website(s) for specific fitment and application information and other important information. This fitment information is based upon the stock version of the motorcycle or unit referenced and any accessory added or