Originally Posted by montreal red
just installed COBB stage 1 tune on the wife's WRX STi. car should be making around 342 hp and 340 lb-ft of torque now (thats 40 more than my RS!)... drove it round the block a few times. biggest difference is how much more torque the car has down low. all the power used to come in around 4.5k rpm, now you get feel the power as early as 3k rpm.
Did you try laying some patches? Curious. I had a tough time breaking free without, turning off DTC, reving to over 4K and popping the clutch. A little autumn humidity usually does the trick. Did you succeed?