CSF has over 5 decades of experience manufacturing radiators. So when it comes to keeping your engine cool and your A3/S3 running at its best, a CSF High-Performance All-Aluminum Radiator is the obvious choice. Designed to perform on the street or at the track, a performance radiator is a must-have for both high horsepower builds as well as race vehicles which need added cooling performance in motorsports environments. This radiator features a 2-Row core with CSF's exclusive B-Tube Technology: Unlike a regular oval shape "O" type radiator tube, CSF uses a specially engineered tube in the shape of a "B". These "B-tubes" are carefully formed and then brazed over the seam to seal. CSF is able to use thinner and lighter aluminum material (with better cooling efficiency) because this design is actually stronger than normal "O" shape tubes that are welded. The design (inlet in the middle of the tube that is seam brazed) increases the heat transfer surface area of the tubes by approximately 15% over regular tubes - producing the efficiency of two smaller tubes vs. one large tube within the same space criteria. With "B-tubes" you are able to get "dual liquid laminar flow". CSF also uses ultra efficient multi louvered fins that are carefully and precisely aligned to maximize airflow through each radiator core. Fin specifications are carefully measured and calculated for each application, and tested for maximum heat rejection efficiency in our wind-tunnel lab.

This Part Fits:

Year	Make	Model	Submodel
2015-2020	Audi	A3 Quattro	Premium
2015-2020	Audi	A3 Quattro	Premium Plus
2015-2019	Audi	A3 Quattro	Prestige
2020,2022-2025	Audi	S3	Premium
2015-2020,2022-2025	Audi	S3	Premium Plus
2015-2019,2022-2025	Audi	S3	Prestige
2016-2022	Audi	TT Quattro	Base
2016-2022	Audi	TTS Quattro	Base
2013-2015	Volkswagen	Beetle	R-Line
2016	Volkswagen	Beetle	R-Line S
2016-2017	Volkswagen	Beetle	R-Line SEL
2023	Volkswagen	Golf R	20th Anniversary Edition
2015-2019,2022-2025	Volkswagen	Golf R	Base
2025	Volkswagen	Golf R	Black Edition
2013-2014,2017-2018	Volkswagen	Jetta	GLI