
ZR1 bone stock the car made 556 rwhp and 541 rwtq = 654 hp and 636 tq - well above advertised 638 and 604
2009 Corvette ZR1, American Racing long tube headers and "off-road" pipes (no cats) all through the stock bimode mufflers;
2009 Corvette ZR1, American Racing long tube headers and "off-road" pipes (no cats) all through the stock bimode mufflers;
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