General Motors has already made it plenty clear that it expects sales of the new 2014 Chevy SS sedan to be modest at best. They’ve even gone so far as to limit the available options to just a sunroof and a spare tire in order to maximize profits, and there isn’t even hope for a manual transmission unless sales exceed expectations.

That means it is up to the automotive aftermarket to provide that extra oomph many customers are going to demand from their Chevy SS sports sedan. Callaway Cars is the first to step up, with Carscoops reporting that the Connecticut-based tuner is offering a supercharged version of the Chevy SS making power on-par with GM’s own Camaro ZL1.

The Callaway SS will utilize an Eaton twin rotor supercharger along with a low-restriction exhaust system, a better intake, and a new tune to pump up the volume on the Chevy SS. Performance soars, with the supercharged LS3 making 570 horsepower and 535 pound-feet of torque. Compare that to the stock figures of 415 horsepower and torque, and there is no doubt that this will be some next-level performance.

Callaway expects its take on the SS to go from 0 to 60 MPH in just 4.5 seconds, with the quarter-mile blazing buy in just 12.4 seconds at 110 MPH. That’s about a half-second improvement over the factory model, and the package will only set you back another $23,000 on top of the SS’s $45,000 MSRP. So for just under $70,000, you can have the Holden HSV GTS, but in ‘Merica!