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Parts/Manifolds/Reverse Rotation EWG Manifold

Reverse Rotation EWG Manifold

A cast top-mount turbo manifold for the Mazda MX-5 NA and NB, made in-house from NiResist D5S Type 2 for reverse-rotation turbos, with a V-band turbine flange and an external wastegate.

Reverse Rotation EWG Manifold

€650.00

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Made in Europe

The Reverse Rotation Top Mount Manifold.

The reverse-rotation manifold is cast in-house from NiResist D5S Type 2 as a top-mount design for the NA and NB. It is built for reverse-rotation turbochargers, spinning the compressor counter-clockwise and turning the outlet toward the front of the bay. In the compact MX-5 engine bay, that shortens the charge-pipe run and removes bends, lowering pressure loss. The wastegate mounts externally, on a V-band 38mm or 44mm flange.

Material
NiResist D5S
Rotation
Reverse
Wastegate
External
Fitment
NA / NB
Kraken cast reverse-rotation top-mount turbo manifold for the Mazda MX-5 NA and NB
Reverse Rotation

Outlet To The Front

The manifold is built for reverse-rotation turbochargers, spinning the compressor counter-clockwise and turning the outlet toward the front of the engine bay rather than the firewall. In the compact MX-5 bay, that shortens the charge-pipe run and removes bends.

V-band turbine flange and external wastegate port on the Kraken Mazda MX-5 manifold
External Wastegate

Boost Control Off The Housing

The wastegate mounts externally, on a V-band flange sized for a 38mm or 44mm gate, keeping boost control off the turbine housing. That reduces the exhaust reversion of an internal-wastegate setup, holds turbine efficiency at higher boost, and gives a separate dump for exhaust-pulse management.

Casting

Cast In NiResist D5S

The manifold is cast in-house from NiResist D5S Type 2, a high-nickel iron used for turbine housings, providing resistance to exhaust heat and cracking. The top-mount casting clears the bonnet and the air-conditioning compressor, and mounts the turbo on a V-band flange.

Mount
Top mount
Turbine flange
V-band
Wastegate
38 / 44mm

Specifications

MaterialNiResist D5S Type 2 high-nickel cast iron
ConstructionCustom cast, top mount
RotationReverse (counter-clockwise)
Turbine flangeV-band
WastegateExternal, V-band, 38mm or 44mm
Turbo fitmentReverse-rotation EWG, V-band (G25 frame)
ClearanceBonnet and air-conditioning compressor
Air conditioningRetained
Engine sizes1.6 B6 or 1.8 BP
FitsMazda MX-5 NA and NB (1989-2005)

Manifold Questions

What is reverse rotation?+

The turbo's compressor spins counter-clockwise, turning the outlet toward the front of the bay rather than the firewall. In the compact MX-5 engine bay, that shortens the charge-pipe run and removes bends.

Which turbos fit this manifold?+

Reverse-rotation external-wastegate turbos with a V-band inlet, in the G25 frame, such as the PSR G25-550 and G25-660 or the Garrett G25-585.

Internal or external wastegate?+

External, on a V-band flange sized for a 38mm or 44mm gate, keeping boost control off the turbine housing.

Does it clear the bonnet and air conditioning?+

Yes. The top-mount casting clears the bonnet and the air-conditioning compressor.

Which engines does it fit?+

The 1.6 B6 and 1.8 BP engines in the Mazda MX-5 NA and NB (1989 to 2005). Choose 1.6 or 1.8 at order.

What is the manifold made from?+

NiResist D5S Type 2, a high-nickel cast iron used for turbine housings, providing resistance to exhaust heat and cracking.

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Unused items in original packaging may be returned within 14 days of delivery. Custom-built or configured kits are non-returnable. Contact us to arrange a return.

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