Quote:
Originally Posted by JWBFX4
I dont have a custom 91 to compare to my 87 perf tune, But the 87 performance tune that Bill wrote for me feels every bit as strong as the 91 canned tune if not stronger. Just figured I would throw that out there.
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I noticed that as well. My 87 custom performance runs really well on any grade.
Quote:
Originally Posted by 88Racing
What octane do YOU want to run?
That's the question?
Why not just two if your into performance? Like 87+91 custom performance tunes?
Keep the canned tow.
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I agree, even if you never use the towing tune it doesn't hurt to have it.