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Old 04-09-2010, 06:37 PM   #1
Scooby Newbie
Member#: 220682
Join Date: Aug 2009
Location: Bay Area, CA
2007 Subaru WRX Sti

Default Octane Boost Worth It For Protune?

Hey i live in california and all we have here is 91 octane. Im planning on protunning my car next week and my questions are:

Does octane boost really work to make 93, is it worth it? If so, which brand is the best?
Will i notice a significant difference in power by protunning 93?
Is it safe to use for a semi-daily driver and are there any consequences?
Or should i just be safe and stick with CA 91 without octane boost?

My Car: 07 sti

Mods: Cobb V2, Headers, upipe, spt short ram intake, invidia catted downpipe, invidida race catback. walbro fuel pump, and ngk 1 step colder spark plugs.

Thanks in advance.
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Old 04-09-2010, 06:43 PM   #2
Scooby Specialist
Member#: 87067
Join Date: May 2005
Chapter/Region: AKIC
Location: Oregon Coast/AK
02 Old but tasty


Get a map made for torco and one for 91 pump. Otherwise don't bother if torco isnt readily available.
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Old 04-12-2010, 10:40 PM   #3
Scooby Specialist
Member#: 232940
Join Date: Dec 2009
Location: cold

what the heck is the point? You're going to get sick of putting octane booster in it or you're not going to drive it very much and get bored with the car. That's what always happens.
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