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The mkiv Supra Owners Club

SPA Cast Iron Exhaust Manifold


dandan

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Out of interest, how do these differ from the Arnout or Treadstone design?

 

The turbo sits a little bit further forward and the wastegate exit is at the top.

 

The external casting also suggests there may be some sort of profiled internal ports but I wouldn't be too excited about that. I want to sit my turbo further forward.

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