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  1. GE3KSPD
    Thread

    ATP GTX2871r - Boost spike issue/ ATP customer service.

    I purchased an ATP GTX2871r IWG with an ATP catless DP back in 2015. For me and on paper, that turbo has a great transient response/spool for...
    Thread by: GE3KSPD, Feb 25, 2016, 16 replies, in forum: Mazdaspeed 3 General Discussion
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