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what fits?
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  1. Engine
    I'm getting ready to install a pair of GFB TMS Respons BOVs and I'm going to switch out the factory vacuum hoses with HKS Super Silicone Hoses. I believe the correct inner diameter (ID) of the vacuum hoses is 6mm. Can anyone with the HKS SSQV4 kit confirm this? I think that kit comes with these...
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