HKS !
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And when I took off my HKS filter the amount of dust in the intake pipes was scary. I've since gone A'pexi and I've checked the pipes 2 years on and there is no filtration issues, the pipes are nice and clean.
Filter test page 1
Filter test page 2
And when I took off my HKS filter the amount of dust in the intake pipes was scary. I've since gone A'pexi and I've checked the pipes 2 years on and there is no filtration issues, the pipes are nice and clean.





