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HEY EVERYONE, We here at Underpressure performance manufacture Twin turbo kits for all LS series engines. We build each kit in house with top quality parts, and we have our own line of turbos. Our kits have an industry first 2 year warranty on all turbos and a life time warranty on all hot and cold piping. You can't find a better deal on a turbo kit then ours!
We offer a Gen 1/2 (99-13) and Gen 3 (14 to present) Silverado and Sierra Twin Turbo kit. Turn your truck into a beast! Our system feature 304 stainless steel Sch 10 tubular manifolds, of course backed with a lifetime warranty.
The Gen 1/2 system features a 304 stainless steel Sch 10 tubular manifolds. On a stock 6.0L with 37″ tires this system made 498WHP and 538ft/tq that's +254whp (+104%) and +273ft/tq (+103%) on pump gas, and full boost was achieved by 2800 RPMs; far sooner than on a centrifugal supercharger system. This results in a better power curve, more torque, and more power delivered to the wheels. This turbo system was designed to have an aggressive appearance while maintaining all factory options. Our 5871 turbos will cover you up to 1100WHP and if that isn’t enough our 6182R stage 2 ball bearing turbo upgrade will cover you all the way up to 1400WHP. The Gen 2 system features a 304 stainless steel Sch 10 tubular manifolds. On a stock 6.2L this system made 614WHP and 623ft/tq (+271whp/+245ft/tq) on pump gas, and full boost was achieved by 3000 RPMs; far sooner than on a centrifugal supercharger system. This results in a better power curve, more torque, and more power delivered to the wheels. This turbo system was designed to have an aggressive appearance while maintaining all factory options. Our 5871 turbos will cover you up to 1100WHP and if that isn’t enough our 6182R stage 2 ball bearing turbo upgrade will cover you all the way up to 1400WHP.
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Aug 25, 2016 | 04:09 PM
UPP TWIN TURBO KIT Silverado & Sierra
