Did you have the timing belt changed at 105,000 miles ?
These cars are better when they are not on the OEM tune. Get the car off of that.
Save your money and keep the car. Put some money aside for repairs.
At least you know what you got and not someone problem they sold...
203,000miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. CHECK your oil, these cars use it.
Engine Build - Click Here