If you plan on keeping your ZL1 like me... Go for it! I just had Davenport Motorsports put a stage 5 on my car... Best thing I ever could have done... It's a entirely different experience now. The price they suggested sounds about right. I had a heat exchanger/intercooler added as well valued at $2000. If this is something u really want just get it and enjoy it, over 600 hp to the wheels feels awesome! Lol
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