I was going to upgrade from the gt2554 to the gt2560 but noticed the bolts for the turbine outlets are not the same. At least according to the flange diagram on the Garrett Website. Can someone confirm if I am correct?

 

My 2560's exhaust flange is the one shown on Garrett's website. Not sure about the 2554r. TBH I thought they were the same, but I guess not. Hope this helps.

 

Thanks. I always thought they had the same bolt pattern.

 

They are the same! Just received this email from Garret.

Thanks for pointing that out.
Garrett got it wrong in that drawing. We will report it so they can
correct it. It looks like they linked to the old GT22 and labeled as a
GT2554R so other attributes are also incorrect on that page.

Confirming with you that the turbine side of the GT2554R is exactly the
same as the GT2560R.