i have a t3 with a .48 i think hot side and a .60 compressor side is this good can someone explain what this is thanks

 

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the numbers you listed are the sizes for your housings, exhuast and compressor respectively. the actual turbo trim is found taking off the compressor housing and measuring the diameter of the wheels. you may want to check out this post for more information https://honda-tech.com/zerothread?id=523242 HTH.