APR DTR8868 Turbocharger Systems

APR DTR8868 turbocharger systems are direct replacements for the EA839 3.0L turbo engine. These upgrades include matching software for various vehicles and mods, providing up to 620 hp (571 AWHP) and 422 lbs.-ft. of torque (572 AWT), depending on vehicle platform and fueling, all while keeping emissions components unmodified. The software supports premium pump fuel grades, race fuel grades, and even ethanol on the S4, S5, and SQ5 platforms with fueling upgrades. For dedicated race cars, the turbocharger is designed with plenty of headroom to go even further on your own. The APR Stage 3 software is designed to avoid hard-spiking in the lower RPM band or running on the edge of what the factory rods and pistons should handle. Particular attention was paid toward component protections for exhaust gas temperature (EGT), back pressure safety (EMAP), turbocharger discharge temperatures, and fueling system capabilities. As rising exhaust gas temperatures require more fuel, the system will lower lambda to cool EGT without taxing the injection system with excessive on-times. Secondary protections will limit output for safety. The HPFP software helps increase headroom without over-driving the pressure to the injection system. The need for limiting power under extreme prolonged use (like tracking the vehicle), is greatly reduced, and the optional upgraded HPFP dramatically increases ethanol output. Note: Specific software is required to use this system, and an upgrade from lower stage systems is included for various vehicles. Software compatibility must be checked before purchase as the software installs to your vehicle's factory ECU. Currently, software can only be installed by an authorized APR dealer. Software is available in two formats: for use with the stock HPFP or for use with the APR HPFP. Additional APR DTR8868 turbocharger systems features, items, and specifications include: * Does not require a core and no additional downtime * Designed to bolt to factory location with factory-style connections * German dual ceramic ball bearing center section eliminates failure-prone journal bearing design * Smooth and reliable operation with a better transient response * Upgraded compressor cover with matching A/R * Larger aircraft-grade, 6061 billet aluminum 88mm compressor wheel * Turbine housing cast with high-temperature 310 stainless steel * Turbine A/R matched to nickel-based super-alloy K418 high-flow 54mm turbine wheel * Each rotating group is VSR (vibration sort rig) balanced for reliable operation * Includes complete turbocharger with a calibrated wastegate actuator and diverter valve * All necessary single-install hardware, gaskets, and clamps * Intake system adapter provides maximum flow-through as optional upgrade for factory intake * ECU software upgrade designed for factory engine and remains emissions-compliant * Supports 91, 93, 100, and 104 AKII, and E60-E85 in North America * Supports 95, 98, 104, 108 RON, and E60-E85 everywhere else * Integrated DV (Diverter Valve) port with OEM DV included Show Less