K&N Filter with restrictor?
 

Hi all

Looking at getting a K&N/Pipercross drop in air filter but I've heard that it causes fuelling issues when a restrictor kit is fitted? (02 reg curvy, restricted via washers).

Any truth in this?

Cheers
Dan

Not heard of any issues myself. I have a k&n fitted to mine and it didn't effect the fuel mix. I did have to tweak my idle slightly though! I have an. Aftermarket end can on mine too.

Above said but I didn't have the washers on. You will be able to tell from the sound if you have mixing issues

Rob

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Re: K&N Filter with restrictor?
 

Cheers. How have you restricted yours? ECU?

Re: K&N Filter with restrictor?
 

Sorry for my ignorance but why would you want to put an uprated filter in a bike which is restriced? Surley it will not do anything anyway becasue of the restriction? Is it a better sound you are after?

Re: K&N Filter with restrictor?
 

i used one because they're washable, so you don't have to keep buying new filters, just wash the current one

Re: K&N Filter with restrictor?
 

This.

Re: K&N Filter with restrictor?
 

I have a K&N filter on my 99 curvy and it improved it! the low and mid range pull was noticeably better and smoother.

Re: K&N Filter with restrictor?
 

They're a far better economy than a standard filter.
Iirc k & n is £40, £10 for a wash kit. Will last for many cleans.
Standard filter £25, reccomended changed every 10k?

Re: K&N Filter with restrictor?
 

Yeh its something like that, eBay prices are £30 for a K&N and £17 for a standard, standard just isn't worth it