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Old 10-30-2021 | 03:42 PM
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NZ Header Questions

So I'm looking at upgrading my exhaust system. For the header pipe I was initially looking at Racing Beat, but unfortunately there's a supply issue at the moment, so I was wondering what other ones people recommend. As well as whether or not the XFORCE ones are any good.
Old 10-30-2021 | 07:31 PM
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What are you looking to accomplish? There's not a lot to be gained there. Have you looked at BHR? I'm not sure if they still produce headers, but it's a start.

Never heard of Xforce.
Old 10-30-2021 | 10:55 PM
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Originally Posted by Loki
What are you looking to accomplish? There's not a lot to be gained there. Have you looked at BHR? I'm not sure if they still produce headers, but it's a start.

Never heard of Xforce.
I've currently got the engine out as I'm rebuilding it so I'm just replacing some other stuff along the way. I like the way an rx8 sounds with an equal length header, plus I'd just like to get rid of my header as it's a bit rusted up.

As for XForce, they're based in Australia I believe. Unfortunately they don't seem to have the header on their website anymore but they're still floating around on a few other sites. I'll put a couple links below to some.
https://www.vividracing.com/xforce-m...152417588.html
https://www.sparesbox.com.au/part/xf...-08-hs-mrx8-01
https://exhaustsystemsdirect.com.au/...3-2008-headers
Old 10-30-2021 | 11:17 PM
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Elite Rotary just released their equal length header. Very expensive (a new OEM manifold is about $400 if I remember correctly) but it looks like art lol.

https://eliterotaryshop.com/shop/ols...eel-rx8-header
Old 10-30-2021 | 11:22 PM
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Originally Posted by _JB_
Elite Rotary just released their equal length header. Very expensive (a new OEM manifold is about $400 if I remember correctly) but it looks like art lol.

https://eliterotaryshop.com/shop/ols...eel-rx8-header
Jeez, definitely is a pricey one! but you're right, it looks amazing. Unfortunately the cost of rebuilding my engine hasn't left me with enough for one of those
Old 10-31-2021 | 08:17 AM
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Might want to check this video. Quinn describes why he went with this header. In later episodes he points to some small power gains that may point to the header.

However it’s a good investment of work and money for maybe a very little gain. In my experience chasing power gains with bolt-ons, there is not much there. Catless adds the most power so far and even that is a very small gain. I thought about a header, but judging on how little I have gotten from other changes, I will be putting my time and money into the suspension instead.

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Old 10-31-2021 | 11:40 AM
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Originally Posted by L.Morrison
Jeez, definitely is a pricey one! but you're right, it looks amazing. Unfortunately the cost of rebuilding my engine hasn't left me with enough for one of those
Even if I wanted to spend that much on a header, it's too fugly to put on my 8.

It looks cheap, like it's made with a bunch of pipe dropoff patched together.
No thanks.
Old 10-31-2021 | 02:10 PM
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A proper full exhaust system will benefit more areas, not only in hp gains. Better flow, lighter overall, heat dissipation. Less restriction on the motor should help longevity.
I've heard about XForce, haven't seen one up close. From photos looks decent. But you can also fabricate one based on designs found on the forum.


Revolution header

Last edited by peloponisios; 10-31-2021 at 02:13 PM.
Old 10-31-2021 | 03:59 PM
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The amount of power you make with a header is about equivalent to eating 1 less cheeseburger per week. As has been demonstrated over and over ....and over again. But new people to the platform will continue to think that all those before them were clueless ...until they get sick of wasting money that is.

Given that the stock manifold is quite well insulated and no aftermarket header is ........................ I'm picking that heating up the inlet manifold has a greater negative effect than anything positive.

Last edited by Brettus; 10-31-2021 at 04:04 PM.
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Old 10-31-2021 | 05:20 PM
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XForce is similar to every other "cheap" header on the market. Worth a couple of HP tops.
Old 11-26-2021 | 08:44 PM
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Did not know where to post this.

I need some help, my RX8 (2010) started to doing long starts, i have to crank like for 3 to 4 seconds to start. I just changed spark plugs and coils about 2.5 months ago. I do not know where to go from here for this problem. I could be that maybe coils are loose but i just do not know and wanted to get some input from some guys that have had this problem or are just know their car problems stuff. Any comment are welcomed.
Old 11-26-2021 | 09:04 PM
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Originally Posted by BigCajun
Even if I wanted to spend that much on a header, it's too fugly to put on my 8.

It looks cheap, like it's made with a bunch of pipe dropoff patched together.
No thanks.

might want to check their rep on RX7Club first too, not to mention that their website seems to be seriously messed up; none of the pages display anything for me.

not that my advice should carry any weight on the subject, but it would be not to waste your money on any of those for a street car. Just cut the OE manifold off just past the last port and make it 3” all the way from there to out the back is going to get you 90% there. There’s a mega header theory thread on here that explains why; the Renesis is not like most any other engine and has no practical pulse tuning potential at all.

.
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