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Old 03-12-2013, 02:55 PM   #1
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Default BEGi Intake Manifold (NB)

BEGi intake manifold. This came off of my '99 motor, so I'm guessing it is NB only. The current version BEGi sells for $639.

This version is no longer available new from BEGi, and these very, very rarely come up for sale used.

$450 $425 (3/18 price drop)



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BEGi Intake Manifold (NB)-image_8bbd9bca-027b-487e-99ff-e2ef41750644.jpg   BEGi Intake Manifold (NB)-image_ad0daa70-ce49-4325-b5de-7e88d1166582.jpg  

Last edited by nickt93; 03-18-2013 at 01:10 PM.
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Old 03-12-2013, 07:27 PM   #2
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I probably would have purchased when I bought your old engine(i thought someone else bought it...?), but have since bought a house, and am broke :/ GLWS
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Old 03-12-2013, 07:30 PM   #3
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so is this manifold for 1.8 miatas only? thank you
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Old 03-12-2013, 08:06 PM   #4
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Quote:
Originally Posted by miatamaniatr View Post
so is this manifold for 1.8 miatas only? thank you
It is only for 99+ 1.8 heads. It will not fit on the 94-97 head. I have one of these and I love it. GLWS.
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Old 03-12-2013, 10:26 PM   #5
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What kind of hp gains/ losses should you expect with this manifold?
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Old 03-12-2013, 10:33 PM   #6
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Link above? Google? Bing? Search button?
https://www.miataturbo.net/engine-pe...-43103/page28/
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Old 03-12-2013, 10:46 PM   #7
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One reason that I love this manifold is because it is not a royal pita to install and remove injectors like the stock NB manifolds. You can also pull it off in less then 10min with a little practice.
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Old 03-14-2013, 12:44 AM   #8
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Quote:
Originally Posted by 1FastMx5 View Post
What kind of hp gains/ losses should you expect with this manifold?
Your car needs to be running 270 whp or greater than 14 psi in order to see any benefit from this manifold. Otherwise, lower horsepower cars will loose power.

from OP link BUT for the newer model, not sure about this one yet....
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Old 03-14-2013, 10:52 AM   #9
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Before and after dynos for a 1.8. He added this manifold, a big throttle body and retuned. IIRC it was an NB head on an NA bottom end.
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BEGi Intake Manifold (NB)-paul_before.jpg   BEGi Intake Manifold (NB)-paul_after.jpg  
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Old 03-14-2013, 01:03 PM   #10
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Very, very interested. I'll be pushing 16psi and 300 (or more with this). I only a few questions if anyone knows the answers;

What is the suggested TB to use (I know it's a 70mm, not sure which one though), is there a specific TB that's suggested?
Am I still able to use my IAC with this? Or has anyone seen one made to work with an IAC?

Last edited by Der_Idiot; 03-14-2013 at 01:37 PM.
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Old 03-14-2013, 01:05 PM   #11
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See Lars' build thread (shiuend). It will answer every single question.
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Old 03-14-2013, 01:19 PM   #12
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Quote:
Originally Posted by miatamaniatr View Post
so is this manifold for 1.8 miatas only? thank you
Cars with 99-05 heads. It won't fit a NA head.

*Edit - Durrr, just saw someone already answered*
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Old 03-14-2013, 01:37 PM   #13
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Quote:
Originally Posted by Der_Idiot View Post
Very, very interested. I'll be pushing 16psi and 300 (or more with this). I only a few questions if anyone knows the answers;

What is the suggested TB to use (I know it's a 70mm, not sure which one though)
Am I still able to use my IAC with this? Or has anyone seen one made to work with an IAC?
I am using a 70mm mustang TB on my car. It is was Begi sold with the IM. I currently am using a remote idle valve. It is a stock 97 idle valve that TurboTim fabbed up to work. I know if you are running an MS3 you can use a remote VW idle valve.

When I was running my car with DW1000's I did not use an idle valve and was able to somewhat idle with just the adjustment screw on the TB out a little bit. One of these days I may go back to trying to run without an idle valve as routing vacuum lines can be a PITA.
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Old 03-18-2013, 01:09 PM   #14
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Bump and price drop to $425.
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Old 03-18-2013, 01:28 PM   #15
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Trade for vics and b18 2 stage intake manifold?
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Old 03-19-2013, 08:16 PM   #16
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Quote:
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Trade for vics and b18 2 stage intake manifold?
Sorry man - no use for that.
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Old 03-19-2013, 09:45 PM   #17
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Couldn't hurt to ask.
I'll be interested if its still up in a few weeks.
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Old 03-26-2013, 03:52 PM   #18
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Bump
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Old 03-26-2013, 11:32 PM   #19
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pm sent
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