![APR Throttle Body Inlet System | 8V RS3 · MK3 TT RS E85 · E86 Z4 30Si 3.0L I6 [N52] IE's performance EA837 ECU calibrations](https://cdn.shopify.com/s/files/1/0635/0032/1015/files/APRThrottleBodyInletSystem8VRS3_MK3TTRS.png?v=1686681076)
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IE's performance EA837 ECU calibrations for the Audi B8/B8
5L engines with the electric power steering system
extra precaution must be taken as condensation in the catch can and lines can freeze and cause pressure to build up in the crankcase
more fuel is required to support the added horsepower from larger turbos
allowing uninterrupted airflow into the supercharger for up to an astonishing 542 HP with APR's Supercharger and Crank Pulleys
APR Throttle Body Inlet System | 8V RS3 · MK3 TT RS E85 · E86 Z4 30Si 3.0L I6 [N52] IE's performance EA837 ECU calibrationsThe APR Throttle Body Inlet System is a comprehensive upgrade to the factory charge pipe system from the intercooler outlet to the throttle body. We replace all components and provide a new, larger, free flowing system that flows roughly 34% more than stock! This was achieved by increasing the cross sectional area of the system and by reducing the tight radius bend directly in front of the throttle body. Our system does away with two potential boost
