The breaker GTV that I bought had one of these chips installed so I thought I would give it a try on my Spider. So unplugged ECU and immo box, plugged in the GTV ones with immo box antenna dangling. Held GTV key near antenna and used my key in ignition. Started fine no warning lights so went for a spin. Runs fine and does seem to have more low down torque. They recommend using high octane so will give that a go. Anybody else tried one of these chips?