Thread: HFS-4 Q&A, application for your engine...
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Old 12-02-2012, 01:22 AM
JumpingJackson JumpingJackson is offline
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Join Date: Oct 2010
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Default Re: HFS-4 intro...
Also, is the HFS-3 compatible with Mazdaspeed 6? What are the differences between HFS-3 and HFS-4?
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