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2001-2004 Corvette LS1 / Z06 LS6 STS Turbo Rear Mounted Twin Turbo System with tuner & fuel injectors, Holley


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STS Turbo Rear Mounted Twin Turbo System WITH tuner & fuel injectors for 2001-2004 Corvette with LS1 (Tuning Kit)

STS Turbo systems overcome challenges of traditional installations by mounting the turbos in the rear. This allows you to retain stock exhaust manifolds, catalytic converters, and mid pipes. Stock intake and throttle body is also able to be retained if desired. Relocating the turbos to the rear help avoid adding additional heat under your hood and you won't have to worry about clearance or interference issues with the belts, pulleys, or accessories in the engine bay. You'll also get a better weight transfer since the turbos are in the rear and not adding additional weight to the front of your vehicle. These systems are available as a Tuning Kit which includes STS Turbo specific DiabloSport inTune i3 handheld tuner along with higher rate fuel injectors. STS rear mount turbo systems come complete with all the components needed for an OEM quality installation, right down to every nut and bolt along with a full color installation manual to walk you through the installation.


  • Patented rear-vehicle design (U.S. Patent 6,745,568) offers a true bolt-on, twin turbo solution producing increased horsepower and torque across a very broad power curve
  • Rear-vehicle design eliminates increased under hood temps by having the turbos in back while also decluttering the engine bay so normal repairs and upgrades can be done without removing turbochargers and tubing
  • These turbo systems do not modify or affect factory emissions devices
  • Provides a unique performance sound since the turbos act as a muffler while turbo spool and rushing air from the blow-off valve make a distinctive sound that’s sure to turn heads! No need for expensive headers, mufflers, or exhaust systems
  • No need for major vehicle modifications as each system is designed to attach to factory mounts.
  • Mounted in place of the stock mufflers, our system is custom engineered to spool quickly, while eliminating all of the installation and excess heat issues of a front-mounted turbo system
  • The turbos utilize wasted energy leaving your tailpipe and many see 1-3 mpg increase in gas mileage compared to their original stock mpg numbers along with lower emissions
  • Systems include front mounted air-to-air intercooler and utilizes 304 stainless steel tubing for maximum strength and reduced weight
  • Approximately 500° F lower turbo temperatures eliminates the need for a turbo-timer, which requires the engine to run after the car is shut off in order to cool down the turbo and prevent oil and bearing damage
  • Turbos are exposed to ambient air rather than under-hood air which allows for better cooling of turbo components. Denser exhaust gasses drive the turbine wheel more efficiently
  • Offers better weight transfer and increases traction because majority of the system is mounted in rear rather than up front
  • System includes everything for a complete installation: turbochargers, wastegate, blow off valve, intercooler, all tubing, hardware, along with detailed instructions

This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.


Air Filter Included Yes
AR 36
Blow Off Valve Included Yes
Brand STS Turbo
Compressor Housing T04B
Compressor Housing Diameter 48.4 mm
Compressor Housing Finish Natural
Compressor Housing Inlet 2.75 inch
Compressor Housing Material Aluminum
Compressor Housing Outlet 2 inch
Emission Code 3
Exhaust Manifold Included No
Exhaust Pipe Material Stainless Steel
Fuel Injectors Included Yes
Handheld Tuner Included Yes
Hardware Included Yes
Injector Size 65 lb
Instructions Included Yes
Intercooler Included Yes
Intercooler Type Air-to-Air
Maximum Boost Pressure (psi) 8-9
Maximum Horsepower Supported (Crankshaft) 760
Minimum Boost Pressure (psi) 5-6
Outlet Flange T-31
Product Type Turbocharger Kits
Spark Plugs Included Yes
Throttle Body Inlet Tube Material Aluminum
Turbine Housing T3
Turbine Housing Diameter 36 mm
Turbine Housing Finish Natural
Turbine Housing Material High Nickel Alloy
Turbine Trim T-3 Stage
Turbine Wheel Type Inconel
Turbocharger Bearing Style Journal Bearing
Turbocharger Mounting Location Rear
Turbocharger Quantity 2
Turbocharger Style T3/T4 Hybrid
Warranty Limited 1 Year Warranty
Wastegate Included Yes
Part Number STS2008T

STS Turbo Rear Mounted Turbo Kits 02:31

Turbos have proven time and time again to be one of the most efficient power adders available. But when it comes to installing a turbo, one of the first things that comes to mind is the hassle of custom headers and lots of fabrication. Well STS has jumped the tracks and come up with its own innovative line of bolt-on single and dual, rear mounted turbo kits for your late model car or truck. Subscribe now to make sure you don't miss any of our new products! HOLLEY ON SOCIAL: Facebook - Twitter - Instagram - Website - Product Videos - PURCHASE:

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