I found that after I did remove all baffles and cats in the original system and also changing to the S&S Stealth air filter the ECU could NOT self adjust enough. Probably as Lightspeed says it only has +/-10% range.
The solution was a open ECU and a customized tune by local S&S magician...
Now the car is totally transformed and drives like a dream. My only problem is the knowledge that I should have done this the day I bought it.....
