These turbochargers utilize several custom pieces including newly designed, high-flow, virgin bronze journal bearings and custom, high-strength piston rings to name a few. All Center Housing Rotating Assembly (CHRA) components used are tremendously improved over conventional RS6 or K04/RS4 units on the market.

Most - if not all - upgraded K04 hybrid turbochargers on the market simply utilize a larger compressor wheel with the small factory turbine wheel & housing (hot-side), which has always proved to be a limit for excellent, high RPM power above 6500 RPM. The turbine side has to be a well-balanced combination with the compressor side as the compressor wheel is only as good as the turbine side it is mated to. That means that with any K04 turbo or turbo based on a K04 housing is limited by its standard K04 turbine/hot-side.

The high-flow RS6-RS turbine side and the new high-flow lightweight, dual-stacked compressor wheel, allow us to spool these RS6-RS turbochargers quickly, preserving low end power and response while flowing enough air for increased top-end power. Our testing has shown a very crisp throttle response down low, all the way up to 7500+ rpm (watch our tachometer in the 10.8 second quarter mile video below). We have found that boost holds flatter throughout the power band and stays even between shifts when compared to a standard chopped up RS6 turbo modified to fit the 2.7T!

Features:

• High-flow, lightweight, C355 aluminum, dual-stacked compressor wheel that features a more efficient flow rate over the OEM RS6 compressor wheel. The OEM RS6 compressor wheel utilizes a single-stack wheel.
• - Re-profiled or "bored out", aluminum compressor housing with tighter wheel clearance.
• - Re-designed and upgraded 360 degree thrust kit, piston rings, and high-flow journal bearings.
• - The RS6 turbine housing ("hot side") has been re-profiled or "bored out" with tighter clearances to suit the high-flow, 713C Inconel RS6-RS turbine wheel and housing.
• - Estimated potential power output: 600+ chp
• - Rotor shaft and compressor wheel are dynamically balanced then the Center Housing Rotating Assembly (CHRA) is fully re-assembled allowing us to fine tune them with a VSR balance to tolerances below the specified tolerances of BorgWarner.
• - Upgraded, high-strength, lightweight rotor shaft & compressor wheel.
• - Clipped turbine wheel to increase the mid-range and top-end power of the car. This also greatly reduces the back-pressure upstream of the turbocharger increasing the exhaust flow through the turbine.
• - Adjustable wastegates from BorgWarner.
• - Each turbocharger is designed and manufactured to JHM standards by our supplier.
• - Built in the United States and Europe with United States and European Sourced parts.

Fitment:

• The RS6-RS turbochargers are fully bolt-on to the stock 2.7T motor and will fit up to the stock exhaust manifold in the stock location. There is no trimming, welding, grinding, or modification needed to make these bolt up to your 2.7T engine. All oil, coolant, and vacuum lines remain and mount in the factory locations. The only modification needed is for our proprietary RS6 exhaust downpipe flange that is different from the standard K03/K04 flange. You can select a flange you can weld on yourself.(ES4046112 or ES4046113)

Includes:

• - Pair of JHM RS6-RS Turbochargers ONLY.
• *Sold separately to make this a turn key install is a hardware kit (ES4045912) and RS6 flanges (ES4046112 or ES4046113) or our bolt on K04 to RS6 downpipe adapters. Also needed is our "JHM RS6-RS Coupler and Clamp Kit to adapt to K04 inlets" also available in this section of our website to adapt your existing K04 inlets.

*NOTE: This product is for Turbos ONLY w No Couplers, Clamps, Inlets, or Hardware.* Hardware kit available as ES4045912, and weld-on downpipe flanges available as ES4046112 or ES4046113

*NOTE: 03 and 04 A6s and allroads with Automatic transmission have a different downpipe design, some modification is required for these to bolt on.*

Not for sale or use in the state of California on any pollution-controlled vehicle as per the California Air Resources Board.