EventH 1st Gear March 14, 2007 Share March 14, 2007 http://www.spdusa.com/engine_modification.htm Apparently they claim that it is unlikely that the stock wrx engine can be taken to 300hp with any reliability. Looking at the number of 1-3year wrx on sale, I wonder how many of them had been "pushed" too hard. even the STI is "only" reliable to <400hp. ↡ Advertisement Link to post Share on other sites More sharing options...
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