Audi S4 B5 V2.4 1.46 -

These software revisions optimize fuel delivery, ignition timing, and boost pressure.

In the Audi tuning community, "V2.4" refers to swapping the stock 2.7T cylinder heads with found in other Audi models (like the A4/A6 in Europe). AUDI S4 B5 V2.4 1.46

The B5 S4 (produced roughly 1997–2002) is a legendary performance sedan known for its . This mod is typically paired with larger aftermarket

This mod is typically paired with larger aftermarket turbos (like RS4 K04s or bigger) to maximize top-end performance. 3. Performance Software (V1.46) Originally rated at approximately 250 hp and 258

The 2.4L heads often have larger intake ports compared to the stock 2.7T heads, providing better airflow for high-boost applications.

Originally rated at approximately 250 hp and 258 lb-ft of torque.

At a "Stage 2" level (requiring exhaust and cooling upgrades), these tunes can push the B5 S4 to 18–22 PSI of boost , resulting in gains of 90–125+ hp over stock. 4. Supporting Modifications & Maintenance To safely run this setup, enthusiasts often include: