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Message: <blockquote data-quote="astroboy" data-source="post: 275899" data-attributes="member: 4527">Most people after install K&N, FC worsen because they have the tendency of pushing their engine a little more which they now can.. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin    :D" loading="lazy" data-shortname=":D" /> RFi (Right Foot intelligence) still applies.. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin    :D" loading="lazy" data-shortname=":D" />But keeping the K&N clean is very important as the oil picks up dirt fast and clog the filter. For a JDM, Speedworks washes and oil your K&N for less then RM9 but our e90 dunno la... so difficult to open (more than 10 screws).. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite3" alt=":(" title="Frown    :(" loading="lazy" data-shortname=":(" /> My Avanza K&N can be taken out within 10 sec.. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin    :D" loading="lazy" data-shortname=":D" /> and I wash my K&N in the kitchen using Dynamo and oil it with 2T oil.. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite7" alt=":p" title="Stick Out Tongue    :p" loading="lazy" data-shortname=":p" /> religiously every 10k km Another thing you all need to be careful when using K&N... after the filter element,  there located our ultra sensitive air flow sensor. Excess of K&N oil will wet the sensor making it less sensitive.. please do some research on overcoming this.. which I still have no clue except spray it with carborator cleaner.. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin    :D" loading="lazy" data-shortname=":D" /> I have one at home to clean my Volvo 940 air flow sensor and throttle body.Avanza no such problem because the K&N is seated on top of the throttle.. excess K&N will be sucked directly into the intake manifold and burn in the combustion chamber..  I think my Avanza no air flow sensor also.. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite11" alt=":rolleyes:" title="Roll Eyes    :rolleyes:" loading="lazy" data-shortname=":rolleyes:" />This is my air flow sensor..<img src="http://i19.photobucket.com/albums/b161/klchew/DIY/E90/af12.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />K&N oil will inevitably coat itself onto the sensor and u can't run a K&N without oiling it. Imagine oiling this sensor... how much sensitivity loss would you suffer? Bear in mind warranty issue.. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite3" alt=":(" title="Frown    :(" loading="lazy" data-shortname=":(" /><img src="http://i19.photobucket.com/albums/b161/klchew/DIY/E90/af13.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></blockquote>

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