So I just bought and fitted the 57i kit to my valver and noticed a few odd things, was wondering if any of you had similar experiences...
First off, the kit comes with a bent tube for re-attaching the breather to the back of the filter, but you don't have to remove any breather so there's a spare hole in the filter! I just blanked it with a big bolt and spring washer and locked nuts... Anyone have this kit and noticed this? Have I done something wrong?
Next up, when I am out on the road, or even revving in neutral, full open throttle, above 4k revs, there's a weird whistling noise, rather like a turbo spinning up. No idea why, haven't got anyone with me to watch it and see where it comes from - might get a mate to look alter while I rev it...anyone seen/heard this?
Lastly, it's a great kit. Apart from the above which are not show-stoppers, it sounds great, there's a definite improvement in throttle response and it feels more urgent when you drop a cog and blast it for overtaking. From standstill it's only slightly sharper.
After a good blip around some back roads and then through town, I open the bonnet and felt the K&N filter itself - nice and cool, cold in fact, and so was the cold air feed pipe which I had carefully positioned to get a good dose of cold air from the lower grille, so I know it's not choking on hot air. I have also removed the hot air feed from the exhaust manifold, as it was useless flopping abou once the airbox was gone, and who needs hot air in our climate?
So to sum up - I love it. I've only ever used K&N kits and have never been let down. Sounds great, goes well, and even cruising on a m-way seems more effortless now - less throttle seems to be needed to keep a speed constant, so it *should* mean a slight improvement in MPG, if I can stop flooring it, that is! just puzzled by the two odd things above though......
