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CTS Turbo

CTS TURBO BOSS TURBO INLET PIPE FOR B9/9.5 AUDI S4/S5

$419.46
Recommended retail, GST inclusive. Prices may change without notice — supplier, freight, exchange-rate and government import charges move with market conditions.
SKU: CTS-HW-383
Fitment: Audi A6 C8 (2019–2023), Audi S4 B9 (2018–2024), Audi S5 B9 (2018–2024)
Shipping: US import — the retail price includes US→AU freight (FedEx International Priority).

CTS Turbo is proud to announce our turbo Inlet for the B9/9.5 Audi S4/S5 3.0T, following our BOSS line of Bolt-On-Speed-Solution parts.


Designed as an upgrade over our the factory and even our own high-flow turbo inlet pipe, the BOSS Turbo Inlet features a larger internal diameter while maintaining proper clearance and factory mounting locations for the PCV system and electrical harness.


We include adapters for hassle-free installation with many different turbochargers. Simply pop the required adapter into the inlet pipe and get ready to rip. The included silicone coupler makes installation with factory airbox or with CTS Turbo S4/S5 intakes a seamless process. No more guessing or buying additional adapters or couplers at extra cost!

A slotted mounting hole makes installation of the lower screw easy.

Included adapters:


  • 52mm – Stock/factory turbo fitment

  • 63mm – Pure750 or other turbochargers with 63mm inlet

  • 66mm – CTS Turbo BOSS800/TTE710/TTE810 or other turbochargers with 66mm inlet

  • Two silicone couplers: for factory and CTS-IT-290R intakes, and another for CTS-IT-964 enclosed intake


Configuration Highlights:


  • CTS-HW-380 with CTS-IT-290R: 435.7 CFM — 11% over stock

  • CTS-HW-382 (52mm adapter) with CTS-IT-290R: 445.2 CFM — 13% over stock

  • CTS-HW-382 (63mm adapter) with CTS-IT-290R: 605.6 CFM — 54

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