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The mkiv Supra Owners Club

Double Decat Question


KamaSupra
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Hi,

 

Going to fit a decat pipe tomorrow, so my Supra will be double decated with a 1 bar restrictor ring fitted.

 

Will it need a fuel cut defender does anyone know or will it be ok as the restrictor ring is to 1 bar? I won’t fit it until I have a fuel cut defender if it’s going to cause any issues.

 

It’s a Jspec TT, thanks!!

 

 

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You may struggle with sustained motorway pulls with the RR ring, mine doesn't make 1 bar with the RR in.

 

I would say you are ok with out the Fuel pump for 1 bar and below boost. I would however strongly recommend your future does involve a FCD, Fuel Pump and Boost controller as there is a noticeable difference between 1bar and 1.2bar

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