I bought a GT2871R and I would like to confirm that it's a GT2871R and not a GT28RS before I buy the fueling chip for the kit. I'm trying to avoid any knock issues with possibly ordering the wrong fueling kit. Are there any identifying marks on the turbo thatwill tell me which turbo I have?

 

I believe that its marked on the turbo housing which one it is.

 

There are a few numbers on the housing, but nothing that identifies what model it is such as 2871.

 

PM cincyTT, he would know.