What different will a K&N Air Filter Make on an 08 R1200GSA?

stevekdavis

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Hi,

I've tried searching but K&N and air are too small to count and filter alone comes back with too many results.

I was wondering what if any difference a K&N air filter will make to a stock 2008 GSA. No other engine or fulleing mods, stock exhaust etc.

I'm looking for simple ways of improving fuel economy (apart from better throttle control! :augie ).

How easy are these to fit, again I can't find a guide for replacing the air filter on the 2008GSA.

cheers

Steve
 
The best and cheapest way to improve fuel economy is to limit the movement in your right wrist. Or get some advanced training.


What makes you think the air filter is a hinderance in getting good fuel economy?
 
The best and cheapest way to improve fuel economy is to limit the movement in your right wrist.
I have acknowledged this is a requirement in my original post.

Or get some advanced training.
Happening on April 26th

What makes you think the air filter is a hinderance in getting good fuel economy?

Nothing. I'm merely asking a) if it will make a difference in fuel economy and b) how easy are they to fit, ie how is the air filter replaced on this bike? Is it a tank off job?

thanks.
 
KN Air filter

Fit one last year to my r1200gs. Easy to fit, no noticable differance to fuel econamy, but the biggest differance is when you take it in for a service.
Redused service time by 20mins, no cost of replacing filter that alone pays for its self. Depending on your mileage each year.
 
For the cost and hassle Steve I would`nt bother getting one. I`ve had performance air filters on cars before, boy racer youth :D and they don`t make any difference at all, in fact some let more dust etc into the engine :(
 
For the cost and hassle Steve I would`nt bother getting one. I`ve had performance air filters on cars before, boy racer youth :D and they don`t make any difference at all, in fact some let more dust etc into the engine :(

+1 I had one for a couple of years. They make no difference and are a pain to clean / service. The disposable OE filter is only a tenner and the K&N isn't cheap when you add in the cleaning kit. You need to do 50k miles just for it to pay for itself.
 
If you are looking at it as a fuel economy measure it's a waste of time and money as the 'point' of a K&N is to allow more air through than the standard filter but this will only be so, if at all, at large throttle openings and high revs when the engine is creating the highest flow through the intake system. Under these conditions the filter may be the biggest restriction to flow (assuming the airbox itself is not a problem).

Giving it wellie to create high flows is of course is not consistant with wanting to save fuel, though great fun.

From personal experince on dirt bikes, I'd be concerned about their filtering ability after they have been cleaned a few times as I found it possible to see many small holes in the filter material. Fine dust particles cause engine wear and it's difficult to see how the filtering ability of a used oiled cloth system could not be bettered by the standard paper filter.

You don't have to take the tank off to replace the filter as it can be done by removing just the RHS part of the tank cover, though it's a much less fiddly job with the tank off and takes about the same time as faffing with the cover alone once you've done it a couple of times.
 
If you search on the net you'll find that K&N are specifically designed for racing, allowing lots of airflow.
You'll also find testresults indicating that K&N filters let through more fine particles (hence the increased airflow), but also that they get clogged faster than competitors filters. This is of no concern when racing.
The main advantage over paper filters seems to be that since K&N are oiled filters, they don't collapse when wet.
I prefer the insides of my boxer safe of micro abrasive material. :augie
 


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