There's no point in guessing when a used oil analysis will tell you if your oil filter is not doing it's job properly.

-Dennis

^This! You can read all of the claims that you want to, or look at the comparisons of cut open oil filters, but with the OEM filter there's no guessing whether or not it will work.

What's the bypass valve spec on the Hamp? Is there any data to show that the OEM Tokyo Roki isn't up to the task?

-Dennis

I had some really bad luck on my last race motor with a canton spin on filter, if that's the one you're talking about. The filter element is far from adequate, and there is no bypass.

They sold us on it when we ordered an accusump, and claimed some 25Kmile life. When we tried to order a replacement element at the same time as the filter, they initially refused to sell us one because "we didn't need it". Complete crap.

My motor lost a bearing on it's 2nd pass when the filter element collapsed. I do not recommend it for Subaru motors. The accusump kept things going for a little while, but unfortunately, I was doing ~185mph when it failed. Turned out to be a $15K filter.

The bigger in-line filters may be better if you're going to run all the piping for them, but I still wouldn't trust it on a street car that didn't get checked every time it ran.

My advice is to stick with the OEM, and change them before and after track events. Cheap insurance. Never had a problem doing that, and shouldn't have tried to fix something that wasn't broken.

Any pictures of the collasped canton filter? I bought one for the brz. Havent had any issues with my other cars that use them..

I do, but can't seem to upload at the moment. May try again later if I remember.

Was very disappointed when we rolled out the element. It was about as long as my arm, very short.

I'm can't say that it necessarily caused the bearing failure, but it did waste the entire engine on something that should have been just a bearing failure.

Just like air filters, oil filters work better when slightly dirty. Changing your filter twice as often as your oil isn't just overkill, it's counter-productive.

I've already posted data to prove otherwise (per Joe Gibbs racing). Will you please post data to back this up otherwise I would just recommend people ignore it.

Also, isn't a new oil filter "slightly dirty" the moment used oil passes through it? If you can please show how, over the course of 5000 miles, 1 filter will be superior over that time frame than 2 filters.

I used to be a very active reader on Bobistheoilguy and remember seeing a study showing that oil filter efficiency improved with use. It's been several years now and I don't have the link anymore. I searched a bit for it and came across one thread that discussed this but it's all I've been able to find so far, and I don't care to waste my time digging up more. That same thread also has a link to an air filter study showing the same thing, that efficiency improves with usage. (see page 4)

I'm very close to when I was planning my mid-oil-change oil filter change, so I would certainly like more info on this if anyone has it.

i saw a glimpse of mann-filter at the sema show. they look like quality filters

The 2.5K oil filter change is a great idea. Glad I stopped into a thread which I assumed was going to be otherwise filled with conjecture, opinion and loose facts. :P

I bought an HKS oil filter. It's AWESOME!! Well I hope so... I haven't done my first oil change yet cause I'm trying to figure out what oil to use but it was bout $40. Kinda pricy but HKS always puts out great products. It's also cool that u can actually see this filter upgrade sittin right there lookin all sexy in that purple finish. Ahhhh can't wait lol

http://www.ft86club.com/forums/showthread.php?t=12593

Which brand of oil are you guys using for oil change?
I'm planning to use the hemp or HKS filter, any tips guys?

FT86 Speed Factory has the Hamp filter for $9 now, just saw it when browsing their new products.