So my manifold cracked again for the third time. I took it to my friends exhaust shop to weld it and reinforce it. The cracks resurfaced so I was wondering where to get a new one for the lowest cost or if anyone has one laying around they want to sell me. Thanks.

 

Try eBay?

3 times huh! How many miles u got on it? Did you make the relief cuts?

 

Have you called Greddy? Despite the quality of some of their parts, the US customer service is usually pretty good.

Tel: (949) 588-8300 info@greddy.com

Another option would be ETD. They have a 1.6 Greddy replacement, made from welded steel, for $360. http://www.etdracing.com/miata1.html

 

I'm not surprised it broke again after it was welded. Cast iron is very difficult to weld, and given the that manifold is under a great deal of stree it's no surprised the repairs didn't fix it.

If mine ever bites the big one I'll likely get the ETD manifod.

 

^ ditto. Supposedly it flows better and I can't help but to think the ETD has to weigh less.

 

you SHOULD get the etd, i'm also looking for a replacement and contacted cyberauto (where a greddy replacement also showed for ~$150), and received a response saying:

"Yes, the Miata manifold IS still available, BUT GReddy requires the old manifold be sent back. The reasoning is they are not offering the manifold for general sale, it is ONLY for use on Miatas already equipped with the GReddy turbo kit where the manifold has broken. They require the core to keep the manifold from being used as a part to piece together a turbo. Your cost for the replacement would be $299.00(plus the broken one). We take Visa, Mastercard, American Express, Paypal, check and money order."

For $300, i'm gonna get the etd

 

Horsepowerfreaks' website says they sell them for $150.00 exchange.

 

Thanks everyone for your replys, I'm really thinking of the ETD like you guys said but cost wise is a little expensive for me. Also I would like to thank BoostinSteve for helping me out on my miata because it does not idle. We have come to the conclusion that it is either the ECU or coilpack, but it could also be the speed control sensor (i don't know what that is). But I can't seem to find a miata I can get parts from here. The two miatas in the junk yard are hard to get parts out of because they are blocked in. If anyone would like to give me some spare parts it would be greatly appreciated. Thanks again!