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impala - ls4

In The Box
  • Turbonetics T66 Turbo
  • Turbonetics Evolution wastegate
  • Cartuning 50mm Blow-off valve
  • Custom-made stainless steel exhaust crossover assembly mating to stock exhaust manifolds
  • Custom-made mandrel bent TIG-welded 2.5" stainless steel downpipe with high-flow LEV catalytic Converter — outlet bolts directly to the stock/Borla/DynoMax/SLP exhaust system
  • Custom oversized Cartuning all-aluminum intercooler
  • All pipes ceramic coated (exhaust) or powder coated (charge)
  • DHM electric exhaust cutout with cabin remote switch, prewelded on downpipe
  • Brand new flow-matched Cartuning-spec Magnetti Marelli 42.5 lb/hr fuel injectors
  • Full methanol injection system
  • Custom Reprogrammed PCM and TCM adjusts for fuel/timing/shifting/etc
  • Racetronix fuel pump rewire kit
  • Stainless-braided AN oil lines and custom adaptor for oil return
  • 4T65E transmission shift kit
  • 4-ply black silicone connectors
  • Silicone vacuum hose (for connection to wastegate, BOV)
  • All PCV solutions
  • Lokar stainless flexible transmission dipstick
  • High-flow K&N air filter
  • Stainless T-bolt band clamps
  • All required bolts, nuts, and washers (grade 8 hardware)
  • O2 sensor plug
  • All gaskets for mating surfaces
  • Anti-seize and thread locker mini-paks
  • PCV modification hardware and specialized tools
  • 180 deg. Thermostat
  • 2 range colder spark plugs
  • Full instruction set on CD-ROM

Kit Components

Kit Installed

Extra Value
When "complete" just isn't enough. Cartuning has put together the ultimate package with it's LS4 turbo kit. Unlike any turbo kit on the market, we made the "Extras" the "standards". We've included an electric exhaust cutout, giving you control of your exhaust sound/backpressure from inside the car. Other standard features include a fuel pump rewire kit from Racetronix, a Cartuning Alky injection system, a Lokar stainless transmission dipstick, and a shift kit for your 4T-65E!

We've bothered going the extra mile so that you could buy one product and not have to continue shopping around. The Racetronix rewire gives your fuel pump the headroom it needs to make it all the way (or past) 500whp – that's 640 at the crank! The shift kit gives you the peace of mind that your clutches will have less wear, and snappier shifts with extended transmission life and cooler temps. Our alky injection system allows you to make amazing horsepower on 91 octane fuel. No longer do you need to run race fuel, or additives to get the performance you want. We've also decked out every LS4 turbo kit with 2200°F satin-black ceramic coating to keep underhood temps way down and horsepower way up!
Extra Value


Oversize Custom Intercooler
Not only was Cartuning Performance the first mass production turbo kit for the current generation W body, but we also were the first intercooler design to maintain stock battery and washer bottle location. Over 350 kits later, these amazing intercoolers are still getting the job done with ease. We don’t offer different styles of intercooler; the one we ship with all IC kits is ultra-capable. At 24W x 10H x 3.5D we’ve taken cars up to 750 crank horsepower and still seen very acceptable pressure drop across the core. Our end tanks were designed and are built in-house, each unit pressure tested to 100psi for leaks before shipping. A key feature of this intercooler is the ability to squeeze behind your front bumper reinforcement bar without sacrificing crash protection or vehicle rigidity.

Piping which we include with the intercooler kit is all CNC mandrel bent stainless, and “fine texture” black powder coated. CNC bending ensures a perfect fitment each time on every car. Standard on all piping is a bead roll to ensure that no silicone pops off at higher boost levels. All hose connections are made with black “Cartuning” 4 ply silicone and stainless T-bolt clamps. Included with each intercooler kit is a replacement new LS1 style MAF sensor to accommodate all the extra air your engine will be flowing. Application dependant, the minimum gain of our IC kit is an additional 80hp (or more!).
Oversized Intercooler

Special Features
At Cartuning, we do everything we can to make the installation of our kits easy and error-free:

Your turbo comes pre-clocked to the right angle, all bolts/nuts/washers are inserted where applicable, baggies of anti-seize and gasket maker are included for less runs to the store, and step-by-step photo instructions on CD that guide you through the installation with ease.

We design our kits to require as little cutting and modifying of the vehicle as possible; this allows your car to return to stock with ease when compared to other turbo kits on the market. Our custom-machined oil return fitting means no need to drill your oil pan and weld in a bung (which often requires raising the engine!).  This turns your 5 hour job into a 5 minute job.
Constantly innovating our product range – pictured to the right is our cast charge pipe for non intercooled kits.  This one piece design means smooth airflow, clean looks, and perfect fit in your car.  Precision in-house TIG welding (shown) is yet another reason to chose Cartuning product.  With our close attention to detail, proper TIG welds means no slag inside the piping, and the strongest possible welds.

Our well-stocked warehouse ensures that we are always ready to ship your order with little to no delay from order to shipment.

These are just a few examples of the many reason Cartuning stands out from the rest.  Order your kit today and find out why Cartuning is all the rage!
Them vs Us
Cartuning Exclusives

Emissions Friendly
That's right. With the exception of a valve cover breather which doesn't comply with CARB regulations, Cartuning turbo kits blow exhaust out the tailpipe as clean as your factory car did! Our high flow catalytic converter is OBD-2 compliant and does a great job of cleaning up emissions. We leave EGR fully intact in our software and kits to ensure great mileage and a clean environment!

To further help things, most customers have reported a 2- 4 MPG GAIN in efficiency after installing their turbo kit! This means it's actually paying itself off over time! (Disclaimer : you can't have a heavy foot for this to happen!)

Pure Raw Power

Brandon's GP GXP Kit Brent's GP Track run
Jimmy's GP 04 GP Dyno Pull Brent's GP Run Jordan's GP
Pure, Raw, Power

CTW-LS4 GM 5300 LS4 Turbocharger Kit for V8 vehicles:
Turbonetics T66 Turbo, Intercooled, Methanol Injected, Ultra-Complete Kit
Note: for all LS4 kits, you must ship your PCM and TCM to Cartuning Performance for reprogramming. They will be returned to you via next-day air shipping. Please contact Cartuning Performance if you have any questions.  

Install Time: approximately 8 - 12 hrs with basic mechanical ability
Tools Required: basic hand tools (socket set, Allen wrenches, screwdrivers, pliers, floor jack, etc.)
Recommended Tools: socket extensions and universal joint, O2 sensor wrench