I have been searching everywhere but cannot find the 1999-2005 squaretop/flattop intake manifold part number. Can anyone help me with this. Yes, I did a search, multiple searchs and cant find the answer. I want to see if mazdaspeed sells them online.
Thanks

 

That is a JDM/EU part so it won't be in any North American lists. Some vendors like Miataroadster and Corksport retailed them a while ago.

 

they pop up in our classifieds every now and then, but very hard to find otherwise.
good luck, I highly doubt mazdaspeed has em

 

Sounds good, I thought maybe mazdaspeed would send them. I emailed a few UK junkyards, we'll see what they say.

 

Honestly, just turn up the boost 1 more PSI and/or gut a 99/00 manifold. It's much cheaper but does not have the 'mad tyte jdm yo' street cred.

Having said that, I just checked mine in the garage and there is no discernible part number on it. The gaskets are very different...

Upper to lower square top gasket: BP6Z-13-135



99/00 Upper to lower: BP5A-13-135


01/05 Upper to lower: BP6F-13-135


As long as you are calling UK junkyards, remember than they sold the 1.6 for a long time after 93 in other markets, make sure you are getting 1.8 parts. As long as you are ordering stuff, get me one of the 01-05 exhaust manifolds and downpipes from a UK 1.8. I'd split shipping with ya!

 

FM test of gutted 99/00 mani (removing the horizontal "shelf" above the butterflies), showed no effect.

 

Boosted or NA application? I was under the impression that the larger plenum of a gutted manifold was a bonus for boosted applications.

 

iirc FMs test was on low power NA application. i would like to see some boosted application dynos just to verify

 

Maybe this will work for you http://www.ebay.com/itm/220810339818...#ht_1582wt_952

 

Bp6z-13-100 manifold, inlet
bp6z-13-130 tank, surge
bp6z-13-135 gasket

 

If you are a Mazda Comp member you can order them directly from Mazda Motorsports Development. They had them in stock as of last week. You have to buy the lower, upper and gaskets separately. And it was MUCH cheaper than the one that was posted on Egay.

 

Alternately, CorkSport still sells them if you want a brand new one:

http://www.corksport.com/mazda-j-spe...-manifold.html

 

At that price, if they can actually get them (I have my doubts, but call them yourself), that's the way to go.

 

alternately you could pay just a few hundred more and get a custom intake :|

 

MMD shows the parts listed above for ~$375. Hmm... I could get a few bucks for my VICS and a few more for my VTCS and... hmm...