BorgWarner EFR-7163 Turbo - T4 Twinscroll WG 0.80ar - 11639880002
 
Original EFR turbocharger
 
T4 Twinscroll, internal wastegate
 
 Power range: 225 - 550PS
 Compressor wheel Inlet: 57mm, outlet 71mm
 Turbine wheel Outlet: 63mm
 Exhaust casing : 0.80 A/R with T4 Twinscroll flange, internal wastegate, V-Band Downpipe connection
 
 Article pictures are only example pictures!
 
 BorgWarner EFR turbocharger was developed and built with only one goal in mind: to dominate on the road, racetrack and 1/4 mile. BorgWarner EFR turbochargers feature the latest high-tech features, unbeatable performance ranges and highest quality.
 EFR Turbos is available in 8 different sizes and 7 different turbine housings, the power ranges range from 250-1000 hp per turbocharger.The combination of highly efficient compressor wheel, gamma titanium aluminideTurbine wheel , combined with ceramic ball bearing technology sets the benchmark for racing turbochargers to the very top and represents the highest level in racing turbocharger technology:
 
 Compressor side: 
 - Forged and milled compressor wheel, extremely light and highest strength against high loading pressures, Extended Tip Technology
 - Integrated divert-air valve
 - Integrated cycle valve
 - 360° rotatable by means of V-Band technology
 - Prepared mounting for speed sensor (optionally available) for measuring the speed of the compressor wheel. This allows the compressor efficiency to be determined.
 
 CHRA: 
 - 2-fold ceramic ball bearing
 - Oil restrictor integrated
 - Water cooled
 
 Exhaust side: 
 - Stainless steel exhaust case
 - Gamma titanium aluminide exhaust wheel and shaft, 50% lighter than a comparable InconelTurbine wheel and extremely heat resistant
 - High-Flow Wastegate channel
 - Integrated wastegate (also available for the Singlenscroll exhaust sides!)