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Originally Posted by urbanjunglist
Thanks much for the insight. Been shopping a bit online and see some great stuff from Dinan & Magnaflow. It seems K&N doesn't make the intake assembly for the 128 (though of course the cone filter is avail)
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check e90 post for the K&N drop in
The cone filter can be fabbed in the current intake, if u go the cut up route
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So, this is absolutely sick, though is a completely foreign (and a bit intimidating) configuration for me. If I can add +14hp & +16ft-lbs for $1299... it seems that this might be a better buy, adding +12hp & +11ft=lbs for $500. I tend not to like to half-ass things though... and that carbon fiber cold air is really calling my name. Where exactly is air pulled in on this assembly?
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I think you are trying to reinvent the wheel.
Option 1 is for 135i with software tune included(?)
Option 2, we may not even have space, Dinnan for n52 e90 has a side vent intake add on pie to stock airbox for NA n52, but we may have no space. Secondly the closed box air intakes seem to work best for n52. Eg gruppeM carbon (rare), euro box, AFE stage 2, Simota ( spelling?)
If you can fab up a simple $100 air intake solution, please share with us more info.