hi I own a 2006 xr6T ute. Have put 42 pound injectors in, changed exhust after cat, flash tuner, k&n filter, preformance spark plugs, and larger intercooler. Peak boost is 16 psi and is putting out 285 kilowatts at the rear wheels.It has done 100,000kms. lately the engine bogs down at about 10 psi. it used to bog down at about 15psi but has got worse. IS it because I am still running the stock turbo pipe or does it need to be put back on the dyno and tunned. All works have been carried out by herrod motorsport. I have had mixed feed back on herrod motorsport and dont no if I should take the car back there or find a new mechanic. any suggestions?
