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#1
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K&n Air Filter
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#2
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Keep the stock air filter, the K&N doesn't filter as well and the oil it uses can lead to problems with your air flow meter down the road.
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#3
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I have used a standard air box and K&N on my 2001 since new. It has never caused problems for the 87k km I have on it now. No increase in HP noticable, a little better throttle response at around 80km thru 140 fast acceleration and a little better sound.
I have lurked here for as long as it has been here on and off. THe standard airbox is extremely efficient and not half as restrictive as other models IMHO and others that regualrly post here. GO for it!
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Niagara 2001 4.4i X5 Black Sapphire Sport package X5world DIYS Mods so far:K&N filter AC Schnitzer aluminum pedals, Piaa Super Plasma Fogs, M5 steering wheel, Chrome exhausts,Chrome gauge rings, Brembo rotors, powder coated calipers, replacement accessorize tray, replacement center console insert, IceLink Plus Ipod, X-pipe, Chrome staggered style 87 20' wheel's Future MODS 10" Sub in rear, figure out how to replace stupid Business CD with monitor, lowering springs |
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#4
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Niagara, you get the rims and I'll get the filter.
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#5
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I've had mine on for about 20,000 km. Can't say I've noticed much difference in drivability but my gas consumption went from 16.8 litres/100km down to 15.5 litres/100km. If the K&N is letting in more dirt the dirt must be helping my mileage.
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Wake up every day that would be a start. |
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#6
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I got 1 MPG BETTER milage after adding a K&N. Everyone I know who's done a K&N or intake go better mileage.
rayx must be getting on the gas a little more now.
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2003 4.6is, Saphire Black on Black with Aluminum trim, Comfot Seats, Loading floor, Nav, TVonNav, Focal Utopia's in front, with Rainbow's in back, Helix 5 channel amp. ACS pedals, Aluminum steering wheel trim, X-pipe |
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#7
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I had my K&N filter put in my 2004 4.4i about 1 year ago. To be honest, I cannot feel a huge difference but I would agree with some posts that the throttle sounds better. No improvement in mileage (always average 17L/100km)...perhaps that's because I have a bad habit of hard acceleration most times.
I can definitely tell you all there is a huge difference in the engine performance when I use Unleaded 100 RON petrol (recently introduced in Australia as Shell Optimax Extreme), just ashamed it costs us around $1.50/L here
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QT- 2004 X5 4.4 Sapphire black/Truffle brown interior with sport options. |
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#8
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Quote:
My gas CONSUMPTION went down, which means my gas MILEAGE went up. The Ozzies and Canucks (and the rest of the metric world) know what I'm talking about.
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Wake up every day that would be a start. |
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#9
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I gotta slow down and read better.
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2003 4.6is, Saphire Black on Black with Aluminum trim, Comfot Seats, Loading floor, Nav, TVonNav, Focal Utopia's in front, with Rainbow's in back, Helix 5 channel amp. ACS pedals, Aluminum steering wheel trim, X-pipe |
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