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Q's about new engines, aftermarket, etc. (archive)
[ Follow Ups ] [ 3-series (E46) Message Board ] [ Msg. Board FAQ ]
Posted by Dev on November 12, 2000 at 20:34:46:

Here's a question about the new 330 engine-

In an article from a recent issue of Bimmer Magazine, they stated that the majority of the HP gain for the new 3.0L engine came from redesigned air flow both intake and exhaust. I assume this means that the new 330 (and similarly '01 325s) have a different air intake and exhaust than earlier E46s? If this is true, does this leave much room for improvement to be had with an aftermarket cold-air intake and exhaust? Certainly more (and better) sound can be had but will there be much of a performance gain? We're seeing the factory release better and better OEM designs that are making it more difficult for the aftermarket and tuners to advertise the "huge gains" that once were possible because of purposely-restrictive designs. Where are the weak links in the newest bimmers?

Any comments?

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