Racingline Performance High-Flow Replacement Filters - S4 (B9) Vibratechnics The hose will need to

The hose will need to be trimmed

Airtec has released their Astra VXR Intercooler with a great price

In-house dyno remap

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Racingline Performance High-Flow Replacement Filters - S4 (B9) Vibratechnics The hose will need toOne of the most cost effective improvements you can make to your car, improving power and economy. The Racingline Performance Panel Filter simply fits directly into the airbox as a direct replacement for the standard restrictive paper air filter element. Vehicle Fitment Engine Panel Filters Shop By Car Audi S4 (B9) Performance Air Filters