Is their a reason that Mazda does not offer factory built headers as a performance option?

I am aware of the issue with a catalytic converter, however, Mazda could offer a free flowing cat converter alongside the headers. For people who want this type performance. A factory install would make the car even more enjoyable. Would a header get in the way of something?|||Some Mazda cars do have performance headers from the factory. The Miata I know does.


There is a science to exhaust systems, to little back pressure kills the low end, to much kills the top end. Seeing that very few of us run at max RPM all day, Mazda (and other manufactures) tend to design for the lower RPM ranges.


Take the Miata, it will turn over 7000 RPM, but some that drive these cars think they need to up-shift at about 5000 to stay in the torque band, so a bigger exhaust and less back pressure will only hurt the performance.


So unless you want to rebuild the engine to live in excess of 6000 RPM constantly (with peak RPM's in excess of 9000) it is a waste of money, for either the factory or you.


By the way I up shift at the point where the next gear where the engine will need to be turning 3500 RPM to maintain the speed at up shift.|||It would be a waste of money.Performance from a Mazda.That's a good one.|||no, mazda doesnt make performance parts, other companies do