I'll second what Chubb said. Big fan of the Bazzaz over the PCV and I had them both... the thing with the Bazzaz is that I reckon they've also changed their product line so you either get the fuel management unit or everything (TC/QS/Fuel mngt) so if you wanna do it in installments it just got harder. I understand the reasons why some would prefer the standalone quickshifters over the others but I honestly see no reason to have anything more than why I got, the thing is flawless every time and I rate the self mapping too.