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RENNtech PKG2 boosts SLR 722 to 740hp

by Noah Joseph (RSS feed) on Jun 25th, 2008 at 3:31PM

Click for hi-res gallery of the RENNtech SLR 722 PKG2 The Mercedes-Benz SLR McLaren may be on its way out, but that doesn't mean there can't be more horsepower extracted from the supercar. The original had 617hp. Then came the SLR 722, which despite its name had 650 horses underhood. The 722's American importer, RENNtech, addressed the perception gap with its first package, boosting output to an eponymous 722hp. Never satisfied to leave well enough alone, RENNtech has now released its second package for the SLR 722 that further boosts power to 740 thanks to a revised ECU and a freer-flowing... Read More

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