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Bigger R15 exhaust housing on 88+ XT4 turbo ?

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Hi all , I was searching a while back for details of the 88XT4 Turbo having a larger turbine housing ie R15 rather than R12 . Someone here mentioned that their turbo was an IHI RHB52 FV7 .

 

Are these turbos with this exhaust housing common in the US or rare as rocking horse used grass ?

 

Cheers A .

Hi all , I was searching a while back for details of the 88XT4 Turbo having a larger turbine housing ie R15 rather than R12 . Someone here mentioned that their turbo was an IHI RHB52 FV7 .

 

Are these turbos with this exhaust housing common in the US or rare as rocking horse used grass ?

 

Cheers A .

 

That might be a EU spec turbo. One of the guys from the other side (of the pond) will probably chime in to confirm.

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