Description
This Unitronic 4″ Turbo Inlet Elbow is designed for 2.5TFSI EVO (EA855) vehicles, equipped with IMS750HS turbochargers. Thanks to unique machining, adapter rings are not required with this inlet as it directly bolts-on to the popular IMS750HS turbocharger.
Made from aircraft-grade cast aluminum and featuring a fully integrated PCV recirculation artery, as well as CNC-machined mounting flanges, inlet and outlets, it is the ultimate turbo inlet elbow upgrade for your car.
Designed using the latest in 3D scanning and modeling technology, this product offers precise fitment using OEM mounting points as well.
Features / Benefits
- Directly bolts-on to the IMS750HS turbo without adapter rings
- 28% increase in flow over stock
- Proven power, torque, and airflow gains
- Fully integrated PCV recirculation artery
- OEM PCV functionality for adequate crankcase ventilation
- Aircraft grade cast Aluminum construction
- CNC-machined mounting flanges, inlet and outlets
- Smooth airflow transitions
- (Does not work with stock intake)
Hardware Included
- Unitronic 4″ Turbo Inlet Elbow for IMS750HS Turbo
- Wastegate Silicone Vacuum Line
- All Necessary Hardware
Related Hardware
- Unitronic 4 inch Forged Carbon Fiber Intake System for 2.5TFSI EVO
- Unitronic 4 inch Intake System for RS3 and TTRS, 2.5TFSI EVO
- Unitronic 4 inch Turbo Inlet Elbow for 2.5TFSI EVO
Product Validations
Using its in-house Superflow SF-1020 Flow Bench, Unitronic Engineers validated designs to ensure that the Unitronic 4” Turbo Inlet effectively optimizes airflow in a variety of conditions. The OEM inlet yielded a peak flow rate of 581 CFM at 28” of H2O (Aq), while the Unitronic 4” Turbo Inlet Elbow achieved 744 CFM, for a gain of 28% over the OEM inlet.
Airflow Simulations
With a product like this 4” Turbo Inlet, it was important for aspects such as positive crankcase ventilation (PCV) to be analyzed to ensure that the PCV system will continue to function as originally intended by Audi’s Engineers. In keeping consistent with the factory emissions and PCV systems, Unitronic’s fully integrated PCV routing allows for proper ventilation. A pressure plot of the PCV exit shows that it has been positioned for optimized function, aligned with the factory’s intent.
Install
Unitronic 4″ Turbo Inlet Elbow for IMS750HS is designed to be simple to install with all the necessary hardware included. Installation time will take approximately one hour including the removal of the factory elbow and installation of your new Turbo Inlet Elbow.
NOTE: This product is compatible with Left Hand Drive (LHD) models only. Does not work with stock intake.
Difficulty Level: 3 / 5
Download Installation Guide 
