The ZR2 Bison packcage of the Silverado offers many upgrades that includes several upgrades. Comes with a 6.2L V8 that gives 420Hp, or a 3.0L Duramax Turbo-Diesel Inline 6 that gives you 305Hp, the Inline 6 engine its a option to people have a better fuel comsumption and maintenance. But obviously the best engine its the 6.2L V8. Next we have a 10 Espeed Auto electronic transmission with Two-Espeed transfer case. And the Multimatic DSSV spool-valve dampers and AEV heavy-duty stamped-steel front and rear bumpers with recovery points. And five hot-stamped boron steel skid plates protecting the front/rear differentials, transfer case and fuel tanks. The ZR2 Bison version represents the maxxed offroad Silverado.
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