Callaway previews their tuning program for the Chevrolet Silverado & GMC Sierra, packages should go on sale later 2013

Callaway has become famous because of fast Chevrolet Corvette that improves, but the company made ​​the decision to deal with the new Chevrolet Silverado and GMC Sierra.

Mechanically the 5.3-liter V8 engine, two American vans will acquire supercharger and delivers 450 horses, an increase of about 95 horsepower, while the big V8 6,2-liter will wear and this compressor in order to have 540 horses (up 120 bhp).

Apart from mechanical changes, the agency prepares a range of accessories such as new rims, suspension, tires and of course decorative inside.