Audi S4 B5 V2.4 — 1.46

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 "1.46" is not a standard Audi part number, it most likely designates a specific from a tuner like Unitronic , GIAC , or 034Motorsport . AUDI S4 B5 V2.4 1.46

Originally rated at approximately 250 hp and 258 lb-ft of torque. At a "Stage 2" level (requiring exhaust and