2009 Volkswagen Jetta Rpm drop under spirited acceleration

2009 VOLKSWAGEN JETTA
85,000 MILES • 2.0L • 4 CYL • TURBO • 2WD • MANUAL
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JERMJ93
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So I bought the car used with 82k miles. I have a slight addiction to speed so I had the car modified. I have an aftermarket intake and turbo back exhaust. I also have a tune from a company called "unitronic" I am running their "stage 2" software. The car runs totally fine apart from when I am accelerating hard it will get to 4k-4500 rpm then stop, drop to 3k-3500rpm and hold for 2-5 seconds then slowly pick back up. For the maintenance and aftermarket performance mods I have done to the car it's not performing as it should be.
Aug 14, 2015 at 5:26 AM
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RIVERMIKERAT
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See if it's throwing any codes and have the computer monitored live while driving.
Aug 14, 2015 at 11:20 AM