Forge Motorsport Stealth 19-Row Setrab Engine Oil Cooler Upgrade for Audi RS4 4.2 V8 (B7)

The original equipment oil cooler circuit installed by Audi on the B7 RS4 features a distinct, problematic manufacturing vulnerability. While the core element itself is constructed from lightweight aluminium, the factory oil line hose fittings are stamped from rigid steel. When exposed to road salt, moisture, and operational heat cycles, a severe galvanic chemical reaction takes place between these mismatched metals. This corrosion ultimately cracks the fittings, resulting in chronic oil weeping that eventually culminates in a sudden, catastrophic loss of oil pressure that can permanently destroy your high-revving 4.2-litre V8 engine.

Key Engineering Features

• Premium 19-Row Setrab Core: Uses a heavy-duty motorsport oil cooler core from Setrab—the same elite component supplier trusted by major Formula 1 operations.
• Anodized Billet Take-off: Direct connection to the engine block is precision CNC machined from 6082 billet aluminium and anodized black to stop chemical oxidation.
• Hose Technik AN-12 Braided Lines: Utilizes heavy-wall high-pressure braided lines coupled with lightweight anodized aluminium multi-angle adapters.
• Laser-Cut Structural Frame: Includes a tailored, black powder-coated structural frame designed to secure the cooler while retaining the original fan control module.
• Debris Protection Architecture: Relocates the core slightly higher behind the bumper skin, reducing the risk of impact damage from flying stones and road debris.

Stealth Styling & Complete Installation Confidence

This premium oil cooling upgrade features an all-black exterior finish across the core, adapters, and overbraided lines, making for an absolute stealth aesthetic behind the factory lower bumper grilles. The package replaces every single problematic OEM component down to the engine block interface, completely future-proofing your luxury sports saloon against expensive line failure. Each kit is backed by Forge Motorsport's legendary lifetime warranty.

Recommended Product Additions

Installation Instructions

To follow the detailed engineering sequence for this front-end upgrade, open the official installation guidelines below:

Download Installation Instructions

Professional Installation at MGM Leeds

Protect your high-revving V8 by having this precision Setrab cooler assembly mounted by the German automotive specialists at MGM Leeds.

Book Installation at MGM Leeds

Vehicle Compatibility & Applications

This replacement oil cooling solution is specifically configured for the high-performance executive models below: