Quote:
Originally Posted by RayRay88
If Aluminum and Metal Intake components were so inferior, they wouldn't be widely used in automotive and motorsports. You know who and or why they use plastic intakes? Low cost and entry level components. You can injection/blow mold a few thousand intakes for the fraction of a cost of a cast or welded manifold.
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Probably volume and rate of sales making AI way cheaper unless they know they will sell a certain number of units to make the cost of molding worth it.
A quick google search In fact, this person broke it down pretty well and backs up my hypothesis.
https://www.speed-talk.com/forum/vie...22743&start=15
This is probably why aftermarket is usually metal, and oem vehicle manufacturers usually use plastic. It’s the cheapest option for both parties given the circumstances. Aftermarket isn’t using metal because it’s inherently better it’s cheaper for them.
Again heat was the most minuscule of the negative points. But the only one people are fixated on. When given a choice all things equal I’d choose plastic. In the end sure it’s probably negligible and no meaningful difference.
If two products are 100% equal, same cost, weight, performance etc... the only 1 difference was one was 1f hotter. It is still technically worse and can be listed as a negative even if it’s ultimately negligible.