Silverado & Sierra Twin Turbo Kit 1999-06 (4.8L, 5.3L, 6.0L)

(In Stock)

Speed Engineering turbo systems: Our goal with these kits was to make the most complete, best fitting, most versatile turbo system on the market at an affordable price. Most turbo kits on the market today are either extremely expensive, or really cheap essentially getting what you pay for. Our turbo systems focus on just that a quality well-built kit, without the price tag of a one off turbo system. Our systems utilize Turbonetics 64mm TNX turbos, Air-To-Air intercooler, and your choice of an exhaust connection type.

Our kit has been tested on several applications. The first application was a 6.0L LQ4 stock engine with a 224 camshaft. On our Mustang 1100MD dyno it made 495rwhp on 5lbs of boost. Our second application was a 4.8L, which was also a stock engine minus a 224 cam swap. It made 710rwhp on 18lbs. Our third application was a built 6.0L with heads/cam. It went on to make 750rwhp on 15lbs, and 800rwhp on 18lbs.

One of the nice features with the sizing of our kit is the ability to run a stock displacement engine with quick spool time. At the same time have a ton of potential to crank the kit up if desired. If you choose to purchase one of our kits we can promise you will not find a better fitting, quality built, budget turbo system for your vehicle.

Features include:

• 64mm Precision Turbochargers with 55mm Turbines
• Full 3" Exhaust Tubing
• 1 3/4" Forward Facing Turbo Headers
• Twin 2.5" Cold Side Piping into Single 3" Engine Inlet
• Air-To-Air Intercooler System
• 50mm Blow-Off Valves
• 44mm Wastegates
• .85 AR Exhaust Housing
• Stainless Heat Shields
• Black Anodized AN Fittings/lines
• All V-Bands & Clamps
• Vacuum Manifold and Hoses
• Air Filters
• IAT Sensor & Harness
• Oil & Water Billet Adapter Plates
• Optional Y-Pipe to Factory Exhaust or True Dual X-Pipe Kit
• 1 Year Manufacturing Warranty

Note: Our kit does not include a fuel system or tuning.

Note: Our kit will require the use of the 03-06 electric fans. (eBay has radiator & fan combos for around 250-300.00)

Note: Our kit does not provide any drive-train warranty of any sort.

Note: Standard 6.0L trucks do not have a factory Y-Pipe. Exhaust fabrication will be needed unless our true dual exhaust is purchased.

Vehicle Applications:

• 1999-2006 Chevrolet Silverado (4.8L, 5.3L, 6.0L)
• 1999-2006 GMC Sierra (4.8L, 5.3L, 6.0L)

(Warning) This is a RACE ONLY product manufactured and sold for installation on vehicles to be used solely for competition purposes. Once this part is installed, the vehicle may never be used, or registered or licensed for use, on a public road or highway. If you install this part on your vehicle and use the vehicle on a public road or highway, you will violate the Clean Air Act 203(a)(3), 42 U.S.C, 7522(a)(3) and may be subject to personal civil or criminal liability.