CSF Audi B8 S4 & S5 High Performance All-Aluminum Radiator

CSF has over 5 decades of experience manufacturing radiators. So when it comes to keeping your engine cool and your Audi 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
2009	Audi	A4 Quattro	Base
2008-2010	Audi	A5 Quattro	Base
2017	Audi	A6 Quattro	Competition
2012-2014,2018	Audi	A6 Quattro	Premium
2012-2018	Audi	A6 Quattro	Premium Plus
2012-2018	Audi	A6 Quattro	Prestige
2018	Audi	A6 Quattro	Sport
2014-2016	Audi	A6 Quattro	TDI Premium Plus
2014-2016	Audi	A6 Quattro	TDI Prestige
2012-2013	Audi	A7 Quattro	Base
2017	Audi	A7 Quattro	Competition
2014-2018	Audi	A7 Quattro	Premium Plus
2014-2018	Audi	A7 Quattro	Prestige
2014-2016	Audi	A7 Quattro	TDI Premium Plus
2014-2016	Audi	A7 Quattro	TDI Prestige
2009-2010	Audi	Q5	Premium
2009-2017	Audi	Q5	Premium Plus
2009-2017	Audi	Q5	Prestige
2014-2016	Audi	Q5	TDI Premium Plus
2016	Audi	Q5	TDI Premium Plus S-Line
2014-2016	Audi	Q5	TDI Prestige
2016	Audi	Q5	TDI Prestige S-Line
2010-2013	Audi	S4	Base
2014-2016	Audi	S4	Premium Plus
2014-2016	Audi	S4	Prestige
2013,2017	Audi	S5	Base
2010-2013	Audi	S5	Cabriolet
2014-2016	Audi	S5	Premium Plus
2014-2016	Audi	S5	Prestige
2014-2017	Audi	SQ5	Premium Plus
2014-2017	Audi	SQ5	Prestige
2017-2018	Porsche	Macan	GTS
2015-2021	Porsche	Macan	S