You don't need to tune for a cbe. But you do need a tune after cai and hfc. Your car may be running lean now. Get a tune so you're not running too lean and get more HP.
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2010 k23
H&R sport springs / Spc rear camber arms / SSR SP1 / Berk cbe / Varis cf lip / Nismo S-Tune side skirts
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