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<blockquote data-quote="yacob.naif" data-source="post: 1905908" data-attributes="member: 565696">if you&#039;re shooting for performance, i&#039;d go with a drop-in k&amp;amp;n cotton air filterbetter flow, and a lot cheaper.most cars come from the factory with airboxes that have cold air snorkels on them, and flow more than enough cubes to satisfy far above your stock hp, and definitely more than your factory intake manifold and heads.depending on how your engine sounds (some sound amazing, a la vr6, while some sound like a$$) you could get it for the sound, since the factory intakes have mufflers on them (the actual airbox) but i would find a forum where people have experience with upgrades for your particular car, and find out if it&#039;s worth while.&nbsp; I know with most vw models (minus i believe the 1.8t) there&#039;s actually a DECREASE in performance with most upgrade air intakes, FYI.And offroad use only just means they didn&#039;t PAY the EPA to test the product and approve it, not that it couldn&#039;t pass.&nbsp; Some states actually DO enforce those laws, i know in some parts of california, if they impound a car for drag racing, they inspect the car, and tack on fines for any upgrade part not specifcally approved by the state for public roads.*edit* it&#039;s not the EPA that has to approve it, i can&#039;t remember who it is.&nbsp; Companies have to pay to have their products tested, tho.</blockquote>

[QUOTE="yacob.naif, post: 1905908, member: 565696"] if you're shooting for performance, i'd go with a drop-in k&n cotton air filter better flow, and a lot cheaper. most cars come from the factory with airboxes that have cold air snorkels on them, and flow more than enough cubes to satisfy far above your stock hp, and definitely more than your factory intake manifold and heads. depending on how your engine sounds (some sound amazing, a la vr6, while some sound like a$$) you could get it for the sound, since the factory intakes have mufflers on them (the actual airbox) but i would find a forum where people have experience with upgrades for your particular car, and find out if it's worth while. I know with most vw models (minus i believe the 1.8t) there's actually a DECREASE in performance with most upgrade air intakes, FYI. And offroad use only just means they didn't PAY the EPA to test the product and approve it, not that it couldn't pass. Some states actually DO enforce those laws, i know in some parts of california, if they impound a car for drag racing, they inspect the car, and tack on fines for any upgrade part not specifcally approved by the state for public roads. *edit* it's not the EPA that has to approve it, i can't remember who it is. Companies have to pay to have their products tested, tho. [/QUOTE]

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