DESCRIPTION
Supertech exhaust valve set for 94-05 1.8L (BP) Miata engines.
Price is for a set of 8 exhaust valves, enough to replace all the exhaust valves in one engine.
Material Options: Choice of stainless steel with black nitride coating, or inconel.
Inconel can handle a couple hundred degrees more than the stainless/nitride valve, so we recommend inconel for engines running boost, and/or any high performance engine that is on pump gas.
Head Diameter Options: Choice of 28.0mm (standard) or 29.0mm (+1mm)
* Single groove
* Length: 102.00mm (standard)
* Stem Diameter: 5.97mm
If you're replacing your valves, we recommend also replacing the valve seals and guides at the same time. Supertech makes both of those too, available separately on our site.
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