Rob, I think you probably SHOULD set the tune to stock until you can get a custom tune to compensate for the H-pipe exhaust. I don't think the K&N filter is any problem, and neither is the Gotts intake mod, but the exhaust must be interfering with the fuel trims.
You MIGHT be OK using just the Level 1 tune though, since it effects only the transmission. I think I'd try that first.
- Jack
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Mon, November 12th, 2012, 12:08 PM
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