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Questions about PPE header
Posted: Mon Aug 22, 2011 6:04 am
by 07miata
Howdy all,
How quiet is the PPE header for the NC Miata, compared to stock and the other aftermarket headers? Since it comes with the cat, any installation differences between it and the other after market headers?
Thanks!
Re: Questions about PPE header
Posted: Mon Aug 22, 2011 6:14 am
by Brian
Headers that remove the converter (Roadstersport and Racing Beat) add a LOT OF SOUND.
The PPE is barely louder than stock because it still has a converter and that converter is a good resonator.
Re: Questions about PPE header
Posted: Fri Aug 26, 2011 10:12 pm
by morrisg
Any idea of the power differences between the PPE header with cat and your RoadsterSport header?
Re: Questions about PPE header
Posted: Sat Aug 27, 2011 4:27 am
by Brian
The PPE flows well for low and midrange thanks to smaller primaries. Only the top end does it give up a few hp to the RoadsterSport.
Re: Questions about PPE header
Posted: Fri Sep 02, 2011 5:30 pm
by 07miata
Does anyone know of any dyno charts with the header? It's SCCA legal so some folks must've bought some. The dyno chart on PPE's website doesn't have a legend so I'm not sure which line means what, especially since they also have a midpipe they claim adds 5 HP.
Re: Questions about PPE header
Posted: Mon Sep 05, 2011 5:46 pm
by 07miata
In case any one else is interested, I heard back from PPE, relative to the dynochart on their website:
Red is the baseline run. MX5 with a modified AEM intake and goodwin racing race muffler.
Purple is the same car with the midpipe added.
Blue is the same car with the midpipe and header.
The midpipe adds a suprising amount of torque/HP and seems like a no brainer to me.
Re: Questions about PPE header
Posted: Tue Sep 06, 2011 7:15 am
by skeeler
07miata,
Thanks for posting that clarifying information.