| Greddy manifolds cracked on me so many times that we gave up reinforcing them. Almost every time they cracked in just a few thousand miles. My car was used for R&D on the inconcel manifolds with external wastegates. I'm very happy with them compared to POS Greddy. They should be buying them all back. No wonder they switched to cast manifolds for the VQ35 kit. Anyway, anyone who is considering the external manifolds version I suggest you give Greg Dupree a call. He did not want to market them until he was satisfied with them. To me they are way better than Greddy but he is more of a perfectionist and I don't know if he's ready to market them yet.
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