500 hp on stock internals? Even properly tuned that motor would have issues eventually(I would think). Granted I've never owned a SRT-4 but with my experience with turbo charged cars I've never seen a 4cyl put down those kinds of #'s on a stock motor and last very long. I guess anything is possible though.
Gotta love that background music. Half the members on this forum where probably 10 years old when that was released.lol
John
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2006 Trailblazer SS C-6 e-fans, 160 thermostat, PCMFORLESS stealth cam set up, ieatsrt8 intake, tuned by Precision Motorsports, transmission built by Sommers Racing and Performance