Anybody install hrc velocity stacks and got good results? I'm reading mixed reviews. I ride a 2009 cbr600rr with full system, bazzaz power commander, hrc ECU. Tia
honestly remember reading a while back some thread where someone cut a second set of oem v stacks and attached them to an existing stack. i think it seemed pretty legit but not really sure what kind of benefits it provides( vstacks in general) and if the bike needs any tuning afterwards, so just disregarded it
I contacted ten Kate in Holland and they are pretty confident I'll get more hp on the top end.
I've already bought them so I'll put them in and see how I go.
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