CTS Turbo Throttle Body Inlet Kit for 8V.2/8Y/8S Audi RS3/TT-RS

Now fully compatible with all 2018-current Audi RS3/TTRS 2.5T DAZA and DNWA engines, this is one kit to fit them all! CTS Turbo is proud to announce our improved 8V, 8V.2, 8Y/8S Audi RS3/TTRS Throttle Body Inlet Kit for DAZA and DNWA Our high flow throttle body inlet is designed it to be larger, but also more aerodynamic than the stock part. Our inlet has a 56% internal volume increase over the stock inlet. Using the latest CAD software, the shape of the inlet tract was flow optimized and cast from aluminum for best performance. All critical parts were CNC machined to ensure perfect fitment and performance. We have also included our machined throttle body spacer from with two additional ports for boost reference and methanol injection; as well and a high-flow 2.75" throttle inlet pipe. Custom-made silicone couplers and t-bolt clamps allow for seamless, easy installation. Features:

• CAD optimized for maximum flow, 56% larger than factory
• Cast aluminum throttle body elbow, billet aluminum spacer/boost tap
• CNC machined in house for perfect fitment
• Direct replacement for factory parts between the cold side of the intercooler and the throttle body
• HP gain of up to 20hp on stock turbo, even more with big turbo upgrades
• Compatible with factory intake, CTS Turbo intakes and most other popular intakes (not compatible with Eventuri intake)
• Compatible with factory and aftermarket intercoolers
• Boost tap includes one 1/8" NPT and one M8x1.0 machined ports for installation of accessories (fittings not included)
• Includes a large-bore 2.75" charge pipe and custom silicone couplers
• Two extra 1/8" NPT bungs on the charge pipe for watermeth nozzles
• Compatible with 1-bolt and 2-bolt MAP sensors
• DV flange is based on factory design
• Includes hoses and fittings to install on 2019+ DNWA engines

Fitment:

• 8V and 8V.2 Audi RS3 (2018-2020) - DAZA and DNWA models
• 8S Audi TT-RS (2018-2020) - DAZA and DNWA models
• 8Y Audi RS3 (2022-current)

    Old part number: CTS-HW-373-KIT, CTS-HW-373

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 5 applications

RS3

Make	Model	Engine	Years
AUDI	RS3		2018–2023
AUDI	RS3 (8V)		2018–2020
AUDI	RS3 (8Y)		2022–2023

TTRS

Make	Model	Engine	Years
AUDI	TTRS		2018–2020
AUDI	TTRS (8S)		2018–2020

Fitment data last updated: 2026-06-26