There was a bit of a debate about the GP5K, but someone on 10-10ths said they'd seen it on an approved list. Either way, it comes with HANS post postions reinforced and pre-drilled so fitting posts is straight forward.... and I don't do FIA events.
I've loaned my GP-Jet to a mate and got the GP5K after I lost the peak of the Jet on the Revitt Straight.... knew I should have changed it before I went racing in an open car :-)
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