Direct-replacement MSP exhaust manifolds are HERE!

RPM is bringing something to the table really soon too. It's initially only going to be stock turbo flange but they plan to follow with larger options.
http://www.mazdas247.com/forum/showthread.php?t=123690988
jump to the end. Welded together. awaiting coating and final machine work. install on me(test pilot) this weekend into week-ish.

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what a gay, my stock mani's cracks are actually affecting drivability now, throwing a CEL due to it. i dont care about HP gains, but I don't want to spend $200 on a junkyard mani that will (or already is) cracked up on my face.

balls!
 
Another groupe buy for the thunder is on. We need 2 or more to get the lower price.
 
I am searching for new exhaust manifold and was wondering if anyone had a more recent list of replacements other than these. The only one that I can still find on the web is the steedspeed, and for $700 its the most expensive of the list. Are the prices still accurate, since this thread was created 3 years ago. Anyone else know of other brands that are available or were to get one would be great. I would even consider buying one used if it was in good shape and the price was right. Will be changing out my WGA soon and was thinking of just doing all this at one time!! also, anyone in the DeLand/Daytona area that would be willing to help with the replacement that would be awesome!!
 
The Steedspeed is a great product, and I've heard good things about the Thunder V2 as well, but I'm not sure if the Thunder is still in production. I believe the creators name was Protephile.

The only other I can think of right now is the MAM (Mental Addiction Motorsports). I believe it had the best performance of the bunch, but finding one is a task and you will likely pay more than the price of a new Steedspeed.
 
I PMed Protephile about the manifold and he said he is still making them. He quoted me $408 shipped I believe.
 
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