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Message: <blockquote data-quote="rao328" data-source="post: 224721" data-attributes="member: 7456">very true, the m50 intake manifold has bigger chambers then the m52, they do it because of emmesion control in germany. changing it would help the car gain power, while doing this changing the cams to (schrick) would give u even more gains <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" />one problem with the m50 compared to the m52 intake manifold is that, the m50 when swapped into a 328i, will only give u the gains when u are running at high 3000-3500 rpm, lower then this, it drowns the power gains in the car, u will not feel the massive pick up the 328 has with the m52 intake. BUT, if u are planing to make a race car and need more power at higher rpm;s then go for it.. remember the m3 us versions are using the m52 manifolds and are running pretty fast!!plz correct me if im wrong..</blockquote>