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So like the title states under full boost I'm experiencing a bit of hesitation/sputtering. It starts in 3 through 6 gear at about 2800 rpm and continues all the way to redline. I took it to the dealer and was told it was probably the clutch however there were no "trans guys" in that particular day. I thought it could've maybe been a vacuum line or and electrical issue or something else. Im currently running a custom 91 octane unleashed tune with intake and exhaust and have been for the last two years with zero issues. Any input is appreciated. Thanks in advance.
 

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Definitely start with the spark plugs. If you're still on the original set pick up some new ones. I run NGK Iridum Tip one step colder. Relatively cheap and easy to change.
 

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So like the title states under full boost I'm experiencing a bit of hesitation/sputtering. It starts in 3 through 6 gear at about 2800 rpm and continues all the way to redline. I took it to the dealer and was told it was probably the clutch however there were no "trans guys" in that particular day. I thought it could've maybe been a vacuum line or and electrical issue or something else. Im currently running a custom 91 octane unleashed tune with intake and exhaust and have been for the last two years with zero issues. Any input is appreciated. Thanks in advance.
Check your OAR, it sounds like the exact problem I was having till I got some octane booster in the car. The winter fuel sucks, it's a real thing.
 

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Check the gap on your plugs. I had a similar thing going on. New plugs fixed it, but when I checked the other plugs, I was shocked at how much the gap grew. Learned a lesson.
 
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