Silverado & Sierra Twin Turbo Kit Stock (710rwhp) LS Truck

Speed Engineering: Prototyping our new twin turbo kit. Truck is a 2001 GMC Sierra stock 180K with a cam only. Truck made 682rwhp on 15lbs, and later goes on to make 710rwhp on 18lbs. Very happy with the results. Looking forward to releasing our kit in 2017.