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Air and Fuel› Air and Fuel Cooling Systems and Components

Wagner Tuning

Wagner Tuning Competition Additional Water Cooler

$1,250.00 $1,212.50 Save $37.50

SKU: 400001012

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Wagner Tuning Competition Additional Water Cooler is an upgrade designed to stabilize and increase the performance of the 2.9L V6 biturbo engine found in the Audi RS4 B9 and RS5 F5 models. It features a massive 55% increase in volume, expanding from the OEM 8.73 liters to 13.52 liters, which drastically lowers coolant temperature and ensures thermal stability under full load. This improved cooling performance helps prevent heat-related power loss.

This water cooler kit utilizes a high-performance competition racing intercooler core with an optimized ratio for maximum heat transfer and sufficient airflow. It is equipped with a heat-conducting anti-corrosion coating for durability and reliability.
Show original supplier description
The Wagner Tuning Competition Additional Water Cooler is an upgrade designed to stabilize and increase the performance of the 2.9L V6 biturbo engine found in the Audi RS4 B9 and RS5 F5 models. It features a massive 55% increase in volume, expanding from the OEM 8.73 liters to 13.52 liters, which drastically lowers coolant temperature and ensures thermal stability under full load. This improved cooling performance helps prevent heat-related power loss. This water cooler kit utilizes a high-performance competition racing intercooler core with an optimized ratio for maximum heat transfer and sufficient airflow. It is equipped with a heat-conducting anti-corrosion coating for durability and reliability.

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

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Specifications

BrandWagner Tuning
Part Number400001012
CategoryAir and Fuel

Videos

Wagner Tuning - AUDI RS4 B9 /RS5 5F - Competition Package installation

Wagner Tuning - AUDI RS4 B9 /RS5 5F - Competition Package installation

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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.

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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.

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