OMG love Purolator filters. I used the extra long one on my 08 R6, just barely cleared!!! That filter guy that rips apart and tests all the filters say Purolator has the most surface area and the smallest particle filtering ability
-Jamie M.
FYI, that same guy also posted this!!
The filters may be the best, but when the MFG recommends not using them, just something to consider
Purolator has recently posted this on their web page:
If you're thinking you want to install a PureONE oil filter on your bike, please think again. PureONE oil filters are designed for vehicles, not bikes. Because of PureONE's high efficiency, the motorcycle oil pump may not be able to handle the pressure. The Purolator motorcycle filter line is designed to meet the specific needs of a bike; therefore we highly recommend the use of a Purolator ML filter over a PureONE oil filter.
From http://motorcycleinfo.calsci.com/Filters.html