Originally Posted by JoeFromPA
And, secondly, are the stock pistons really that much of a problem or is it simply that the stock tune is very questionable & alot of tunes also have dangerous running conditions, leading to the illusion that the stock pistons are weak for both stock and tuned cars. Get me?
The million dollar question. For the 05-06, I don't think the stock tune is questionable on a 100% stock car. But I can't say for sure if there is an inherent design flaw in the motor which leads to the ringland failures. Nor can I vouch for the quality of everybody else's tunes. But I do believe that the Subaru ECU is very forgiving and has an aggressive knock control system, IMO more aggressive than any other turbo car I've ever messed with. There are so many cars out there that if you make one mistake, you're dead.