Such thing as Mazda 6i Headers???

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The 6i has a set of 4 into 1 headers stock. Draxas makes an aftermarket set, but no gains have ever been posted, nor has anyone who installed them noticed any large difference other then acoustically. The 6i's exhaust is very well designed, very straight flowing, with little if no primary restrictions. The biggest issue with the 6i's exhaust is some areas go from 2.25 to 2.0 pipe momentarily. Here's how twowheeling fixed that problem.
http://forum.mazda6tech.com/about2161-0.html


http://store.draxas.com/detail.asp?Cat=&Sub=&Item=430
Here's the link to the draxas headers if your interested in trying them out. No one has yet to dyno, so its unknown what gains they give. I'd imagine they move the torque curve around and add maybe 5-10 ft/lbs.

Gains will be small because your replacing headers with another set of headers. Generally headers give a noticable gain (like in the 6s) when you replace restrictive exhaust manifolds with a set of headers.
 
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My car should be going in to DC Sports this week for headers. Don't know the style yet, will have to update once things are confirmed. hope to have a prototype on for Mazdafest, they'll have the car for a couple weeks.
 
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