Sale

Heating and Cooling› Radiators

CSF High-Performance

2-Row 42mm All-Aluminum Radiator

$699.00 $639.00 Save $60.00

SKU: CSF-7091

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The CSF High-Performance All-Aluminum Radiator is a direct replacement cooling component designed for Audi B8 S4/S5 and other 3.0L/3.2L Audi models. It features a 2-Row 42mm core utilizing CSF's exclusive B-Tube Technology, which increases heat transfer surface area by approximately 15% over standard tubes. The radiator incorporates ultra-efficient, multi-louvered fins for maximized airflow and heat rejection.
Show original supplier description
The CSF High-Performance All-Aluminum Radiator offers enhanced cooling for Audi B8 S4/S5 and various other 3.0L and 3.2L Audi models. Engineered for both street and track performance, this radiator is constructed with a 2-row, 42mm core that employs CSF's proprietary B-Tube Technology. This design expands the heat transfer surface area by about 15% compared to traditional "O" type tubes, providing "dual liquid laminar flow" for superior thermal efficiency. Complementing the B-Tubes are ultra-efficient, multi-louvered fins with a 6.5mm height, precisely aligned to maximize airflow and heat dissipation. The radiator features CNC-machined "quick-connect" inlet and outlet connections, along with CNC-machined brackets and fittings, ensuring a durable, precise fit. It also includes an upgraded plate-type transmission oil cooler, with a plug provided for manual transmission applications. The radiator boasts a smooth satin finish and an all-aluminum race-style drain plug. This radiator is designed as a true "drop-in fit," requiring no modifications for installation and accepting all attaching OEM components, including hoses, the AC condenser, mounting brackets, and fan shroud. It is compatible with a wide range of Audi models, including the B8 A4 Quattro (2013-2014 Supercharged 3.0L V6 Manual, 2009-2012 3.2L V6 Auto/Manual), B8 A5 (2015-2016 Supercharged 3.0L V6 Auto/Manual, 2008-2010 3.2L V6 Auto), B8 A5 Quattro (2012-2016 Supercharged 3.0L V6 Auto/Manual, 2008-2011 3.2L V6 Auto), C7 A6 (2016 Supercharged 3.0L V6 Manual, 2012-2018 A6 Quattro Supercharged 3.0L V6 Auto/Manual, 2012-2016 A6 Quattro Turbo Diesel 3.0L V6), C7 A7 Quattro (2012-2018 Supercharged 3.0L V6, 2014-2016 Turbo Diesel 3.0L V6), 8R Q5 (2010-2017 Turbo Diesel 3.0L V6, 2013-2017 Supercharged 3.0L V6, 2009-2012 3.2L V6), B8 S4 (2010-2016 Supercharged 3.0L V6 Auto/Manual), B8 S5 (2010-2017 Supercharged 3.0L V6 Auto/Manual), 8R SQ5 (2014-2017 Supercharged 3.0L V6), and Porsche Macan models (2017-2018 GTS Turbocharged 3.0L V6, 2015-2021 S Turbocharged 3.0L V6, 2015-2021 Base Turbocharged 3.0L V6, 2015-2018 Base Turbocharged Diesel 3.0L V6).

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandCSF High-Performance
Part NumberCSF-7091
CategoryHeating and Cooling
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy