HKS In Development for Si specific items

[cmzkcmzk]

As some of you guys may already know, I found this list on their website:

https://www.hks-power.co.jp/en/pickup-car/civic/index.html

Hypermax IV GT is in development for Si specific, and hope it is compatible with sport mode!
And, also cannot wait to hear that Hi-Power muffler sound!

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