I've had my T1R test pipe on for over a year with no problems.

 

Do you have the mechanical o2 fix for your invidia? If not that might be the problem. Either that or your o2 sensor is toast.

 

not sure if my invidia has the o2 fix. i thought it did but my shop said it doesnt. It doesn't throw the cel often, only when i get on the gas.

 

Just look at all the dynos that have been posted up (both on this thread and others). It's just the 'feeling' of loosing power, you should still be climbing in HP numbers, but the feeling of the huge increase of torque on the low end mated with the drop in torque up top is part of the reason why the car begins to feel like its slowing up. The other part is, like other's have mentioned, that the car is more restricted on flow as it climbs to redline due to things like exhaust piping size (and a cat, but you mentioned a TP). If you are running a test pipe w/o the unchanged greddy basemap, you need to get it retuned for optimal performance and safety.

 

yeah no worries i'm using a fresh map that my tuner made for me.

 

Anyone else running the berk with the greddy kit?