Most turbo kits on the market are either priced out of reach or cut so many corners you end up paying twice. Speed Engineering's twin turbo kit for the 2014–2018 Silverado and Sierra was built to change that — a complete, well-engineered hot-side system utilizing Precision 62mm turbochargers, an air-to-air intercooler, and a full 3" stainless exhaust system that has been tested and proven on both 5.3L and 6.2L LT applications.
Power ranges start around 500 RWHP and have exceeded 800 RWHP with nothing more than a spring or boost controller change. The 62mm turbo sizing delivers quick spool time on stock displacement engines while leaving substantial headroom to push the kit further when you're ready.
Available with your choice of a Y-pipe connection to the factory exhaust, a true dual X-pipe kit, or straight pipes exiting near the bellhousing.
⚠️ Important Notes:
- LT engines only — compatible with 5.3L and 6.2L LT engines. Not compatible with LS engines
- Fuel system and tuning are not included — both are required for safe operation and are the buyer's responsibility
- No drivetrain warranty is provided with this kit
- AWD and 4x4 applications will need to delete the oil cooler or tap into the factory oil cooler unit for proper installation
Kit Includes:
- 2 Precision 62mm Turbochargers with 62mm Turbines — T3 Flange, .85 A/R Exhaust Housing
- 1-3/4" Forward Facing Turbo Headers
- Full 3" Exhaust Tubing
- Twin 2.5" Cold Side Piping into Single 3" Engine Inlet
- Air-To-Air Intercooler System
- 2 x 50mm Blow-Off Valves
- 2 x 44mm Wastegates
- Stainless Heat Shields
- Black Anodized AN Fittings and Lines
- All V-Bands and Clamps
- Vacuum Manifold and Hoses
- Air Filters
- Oil and Water Billet Adapter Plates
- Optional Y-Pipe to Factory Exhaust, True Dual X-Pipe Kit, or Straight Pipes Exiting Near Bellhousing (select at checkout)
- 1 Year Manufacturing Warranty
Features:
- Precision 62mm Turbochargers — Quick spool on stock displacement with serious headroom for more power
- 500–800+ RWHP Power Range — Tested on multiple 5.3L and 6.2L applications
- Air-To-Air Intercooler System — Effective charge cooling for consistent power
- Full 3" Stainless Exhaust System — Maximum flow from header to outlet
- 1-3/4" Forward Facing Turbo Headers — Optimized turbo placement and exhaust routing
- 50mm Blow-Off Valves and 44mm Wastegates — Boost management included in the kit
- Stainless Heat Shields — Thermal protection for surrounding components
- Complete Hardware Included — V-bands, clamps, AN fittings, vacuum manifold, and air filters all included
- Choice of Exhaust Connection — Y-pipe to factory exhaust, true dual X-pipe kit, or straight pipes exiting near bellhousing
- 1 Year Manufacturing Warranty
Vehicle Applications:
Note: LT engines only — 5.3L and 6.2L. Not compatible with LS engines.
Chevrolet Silverado 1500 — 5.3L/6.2L LT
- 2014 Chevrolet Silverado 1500 — 5.3L/6.2L LT
- 2015 Chevrolet Silverado 1500 — 5.3L/6.2L LT
- 2016 Chevrolet Silverado 1500 — 5.3L/6.2L LT
- 2017 Chevrolet Silverado 1500 — 5.3L/6.2L LT
- 2018 Chevrolet Silverado 1500 — 5.3L/6.2L LT
- 2019 Chevrolet Silverado 1500 Classic — 5.3L/6.2L LT
GMC Sierra 1500 — 5.3L/6.2L LT
- 2014 GMC Sierra 1500 — 5.3L/6.2L LT
- 2015 GMC Sierra 1500 — 5.3L/6.2L LT
- 2016 GMC Sierra 1500 — 5.3L/6.2L LT
- 2017 GMC Sierra 1500 — 5.3L/6.2L LT
- 2018 GMC Sierra 1500 — 5.3L/6.2L LT
- 2019 GMC Sierra 1500 Classic — 5.3L/6.2L LT
Frequently Asked Questions:
Q: How much horsepower can this twin turbo kit make? On 5.3L and 6.2L LT applications, power ranges start around 500 RWHP and have exceeded 800 RWHP with nothing more than a spring or boost controller change. The 62mm turbo sizing provides quick spool on stock displacement engines while leaving substantial headroom to push the kit further.
Q: Does this kit include a fuel system and tuning? No. A fuel system and tuning are not included and are required for safe operation. Both are the buyer's responsibility to source and install.
Q: Is there a drivetrain warranty included? No. This kit does not provide any drivetrain warranty of any kind. A 1-year manufacturing warranty on the kit components is included.
Q: Will this kit work on my AWD or 4x4 truck? Yes, but AWD and 4x4 applications will need to either delete the oil cooler or tap into the factory oil cooler unit for proper installation.
Q: What exhaust connection options are available? You can choose between a Y-pipe connection to the factory exhaust, a true dual X-pipe kit, or straight pipes exiting near the bellhousing at the time of purchase.
Q: What engines is this kit compatible with? This kit is compatible with 5.3L and 6.2L LT engines found in 2014–2019 Classic Chevrolet Silverado and GMC Sierra 1500 models. It is not compatible with LS engines.
Q: What turbochargers are included? The kit uses Precision 62mm turbochargers with 62mm turbines, T3 flange, and .85 A/R exhaust housing.
Q: Is this kit street legal? No. This is a race-only product intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).
⚠️ Race Use Only: This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).
