- Oct 14, 2003
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Since 93 octane is no longer available in my area and I will be switching back to my 93 octane Hypertech tune today, which Octane booster is the best? Superchip tune was for 91 octane but the transmission shifts really suck big time so I'm switching back until I get my KB. With their chip I'll still need the Octane Booster because I think the KB chip is tuned for 92 octane. I've used 104 Octane Booster, but I can get Amsoil Octane Booster for the same price and it is supposed to be better...is this true? Thanks.