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#3392663 - 06/09/14 12:16 AM Re: Why Aren't Headers Standard Equipment? [Re: rslifkin]
TiredTrucker Online   content


Registered: 01/04/08
Posts: 2298
Loc: Central Iowa
Originally Posted By: rslifkin


It does throw a little more heat into the engine bay


Thank God for header wrap, eh?
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#3393094 - 06/09/14 02:36 PM Re: Why Aren't Headers Standard Equipment? [Re: JerryBob]
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Registered: 08/05/02
Posts: 13242
Loc: Silicon Valley
Why? Because it is not a good use of the R&D and production money. You can get much more out of the same cost if your car is designed with better engine (i.e. variable valve timing or variable intake opening) than different tubing length / width.

Also a much bigger header only increase top end HP at the expense of bottom / mid range, so why bother?

Mazda use it for their skyactiv motor because of their piston and injector design that can benefit more from it. It is not as useful for the more common / old school engine design.
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