Stillen Canned Tune

wymoteeZ

I run Stillen's canned HFC map -> That is probably what you are calling 'aggressive'. I run 93 octane.
I was traveling & worried about running 91 octane. When I was stock, running 91 would dramatically effect performance.
When I filled up with 91 on my trip (had only 1/6 tank of 93 in there) --> I swear the Z ran BETTER.
I know this is a late post to your question, but I think Stillen tunes them for 91 octane.
That experience has got me thinking hard about a custom tune.

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