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This addresses both posts. I will give the ethanol free gas a try. I always run Tier 1 fuel in the Boxster (actually all my cars except the old VW cabro). I just need to find tier 1 ethanol free fuel in my area.
The exhaust is the popular and expensive Fabsport. The probes are in the stock locations. The probes are new, the exhaust has very low mileage.
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