Flyin' Miata 1.8 Manifold and Outlet Pipe

Reply Subscribe

Thread Tools

Search this Thread

Apr 4, 2025 | 07:29 PM

Jesse99James

Thread Starter

Junior Member

Joined: Jun 2010

Posts: 291

Total Cats: 43

From: Minneapolis, MN

Flyin' Miata 1.8 Manifold and Outlet Pipe

I just removed these from my modified MSM, the original owner installed the full, FM2 Garrett upgrade kit. I built an engine and decided to order the new manifold and outlet pipe ($900) with my tax return and money that was burning a hole in my pocket to maximize the GT2560R turbo at 18 psi. I ran these for a year on the built engine before FM got enough stock from the foundry to sell them individually. A smear of grease on the flanges and the turbo sealed to the manifold, and the outlet pipe sealed to the turbo and to the lower exhaust without leaks. The FM2 kit was installed sometime in 2010 onto a 2004 MSM at some unknown mileage. It only had ~21k miles when I brought it home and I added 12k over the last four years.

When I built the spare engine I had the head face resurfaced. The stud holes are round, the expansion cuts are open and nearly evenly spaced, and the mounting surfaces are flat. Despite the outlet pipe's lower flange face looking rough in the last picture, all flange faces feel flat to the touch (fingernail) and look great against two rulers. They were cleaned up with brass wire wheels in my Dremel and coated with 3-in-1 oil. All fasteners are included except the nine nuts that hold the manifold to the head studs...and of course, no T2 turbo is included. The five studs that attach the outlet pipe to the turbo are new, never used. All locking washers are there and stud threads are undamaged. The EGR port threads are also undamaged, it was never cross threaded. Sorry, I didn't see the sawdust from my workbench in the second picture before posting.

How does $400 plus shipping sound? I kept the packaging from my new parts and can get a shipping quote by weight/size with your zip code.