K&N FILTER

[bmccaffrey]

Looking for opinions on the K&N filter.

Is it worth the expense to switch. And is there any difference in performance.
Not interested in changing the air box .
Would like Baja rons opinion also.
Tx in advance!!!:yes:

 

[finless]

Looking for opinions on the K&N filter.

Is it worth the expense to switch. And is there any difference in performance.
Not interested in changing the air box .
Would like Baja rons opinion also.
Tx in advance!!!:yes:

I don't know yet.... My 14K is coming up and I am doing it myself. Just ordered the K&N from Ron and will be replacing it soon.

Give me some miles and I will then have an opinion.

Bob

 

[Chupaca]

My. 02¢'s

it did make a difference on my RS with the stock box. Later tossed the whole thing and went with JT's system but changed to the K&N filter there too...I did have a hindle exhaust as well. Tossed that as well for the Yoshimura R77...fickle you may ask..:roflblack:

 

[MikeinGA]

Looking for opinions on the K&N filter.

Is it worth the expense to switch. And is there any difference in performance.
Not interested in changing the air box .
Would like Baja rons opinion also.
Tx in advance!!!:yes:

I use K&N filters in all my cars, trucks, and motorcycles for a lot of years. In the 2011 Spyder RS-S SE5, it gave me better performance and little more gas mileage and I don't have to buy any more air filters and my Spyder used less engine oil.


Mike

 

[BajaRon]

Looking for opinions on the K&N filter.

Is it worth the expense to switch. And is there any difference in performance.
Not interested in changing the air box .
Would like Baja rons opinion also.
Tx in advance!!!:yes:

The answer is, 'It Depends'.

If you couple the K&N with a freer flowing exhaust system then you should see a little increase in performance and you may see a bit better fuel mileage. If you ditch the air horns and pick up an ambient air source it can improve a bit more.

One thing for sure. You won't ever have to purchase another air cleaner for your Spyder. And the service interval is much longer with the K&N filter.

 

[BLUEKNIGHT911]

K & N FILTER

The answer is, 'It Depends'.

If you couple the K&N with a freer flowing exhaust system then you should see a little increase in performance and you may see a bit better fuel mileage. If you ditch the air horns and pick up an ambient air source it can improve a bit more.

One thing for sure. You won't ever have to purchase another air cleaner for your Spyder. And the service interval is much longer with the K&N filter.

:agree:.......I just fitted one on my 1330 RT with a custom air intake .......It can be seen at Spyderfest, & or Best Western Coach House......Mike :thumbup:

 

[PistonBlown]

Here's one very good reason to use it rather than a stock filter.

I've actually replaced my airbox with JT's filter but when I was taking the old one out I found a piece of straw was working it's way up the side of the stock filter. I found 2 more bits in that had already got past and if they could what other grit etc has?

My understanding is that the K&N and Green filters have a different design for the edge of the filter that seals this up properly.

Here's a pic just to prove I wasn't imagining things:

 

[bmccaffrey]

The answer is, 'It Depends'.

If you couple the K&N with a freer flowing exhaust system then you should see a little increase in performance and you may see a bit better fuel mileage. If you ditch the air horns and pick up an ambient air source it can improve a bit more.

One thing for sure. You won't ever have to purchase another air cleaner for your Spyder. And the service interval is much longer with the K&N filter.

I do have HMF aftermarket exhaust:yes:

 

[bluestratos]

I ran the K&N filter then added the Akrapavic two years later when I bough my 2011 RT. The K&N made no difference but when I added the muffler there was a small power gain. I took the K&N out and reinstalled my stock filterfor a test and again, no difference so I added the aftermarket air filter.. major difference..... in sound but no measureable power increase . I then went all out and added the cat delete, again major difference .... in sound but no power gain.

I confirmed all my tests by running timed quarter miles and only the muffler made any real difference. Even after adding the fuel controller I gained very little, not enough to justify the expense. I tried to get the sound level down by wrapping the headers and the Y-pipe but it hardly made any change, and the fuel controller worked havoc with my on board computer causing constant codes until I took it out. I then put everything back to stock other than the muffler, including the Y-Pipe and the air box. It sounded like it was silent after that, lol...

Long story short quarter mile tests proved that the $4,500 I spent on power enhancements made almost no difference other than the muffler which made it a 1/2 second faster, mostly in the in the mid range. Unfortunately no one was set up dyno the setup locally. I also ran some standing starts against a food friends stock model and was shamed to see how I only gained a bike length from 0-70.

I built many a power car back in the 70s-80s and the results were often very dramatic, cutting seconds off of the timed runs and believe it or not just changing the stock rad fan to a flex fan made one of the biggest improvements for a very few dollars. With the fuel injected engines later on and the mileage requirements set by the government a lot of the easy fixes were done at the factory. I moved over to diesel then since there was a lot of untapped potential, for about $5K I doubled my F250's horse power and close to tripled the torque. I added .5 horsepower for every dollar spent, huge difference. By the way I had the diesel dynotuned as well as timed in the quarter so the results were documented.