While "1.46" is not a standard Audi part number, it most likely designates a specific from a tuner like Unitronic , GIAC , or 034Motorsport .
These software revisions optimize fuel delivery, ignition timing, and boost pressure.
This mod is typically paired with larger aftermarket turbos (like RS4 K04s or bigger) to maximize top-end performance. 3. Performance Software (V1.46) AUDI S4 B5 V2.4 1.46
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).
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: While "1
Features a 6-speed manual or 5-speed Tiptronic automatic, with Audi's signature Quattro all-wheel-drive system. 2. The "V2.4" Modification
Originally rated at approximately 250 hp and 258 lb-ft of torque. AUDI S4 B5 V2.4 1.46
The B5 S4 (produced roughly 1997–2002) is a legendary performance sedan known for its .