testpipe

  1. originalmarshmello
    Thread

    Should I replace my downpipe gasket when upgrading? + tuning question

    I have a turboxs downpipe and testpipe I plan to install soon, but want to avoid any leaks. For those wondering, yes I have upgraded HPFP...
    Thread by: originalmarshmello, Jul 7, 2022, 3 replies, in forum: Mazdaspeed 3/6 Engine
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