BMW B58 Gen 3 Decat Downpipe | High-Flow Stainless Steel Exhaust Upgrade (M140i, M240i, M340i, M440i, Supra A90)

Unlock the true performance potential of your BMW B58 Gen 3 engine with our High-Flow Decat Downpipe. Designed for maximum exhaust flow and reduced backpressure, this upgrade enhances turbo response, increases horsepower, and delivers a more aggressive exhaust tone.

Precision-engineered from premium stainless steel, this downpipe provides durability under high temperatures and offers a perfect fit for direct installation, built to handle both stage 1 and stage 2 performance tuning.

Whether you’re chasing performance gains or simply want that deep turbo sound, this decat downpipe is the ultimate upgrade for your B58-powered vehicle.

✅ Key Features:

• Fits: BMW B58 Gen 3 Engines (2020+ models)
   – BMW M140i / M240i (F20/F22)
   – BMW M340i (G20/G21)
   – BMW M440i (G22/G23/G26)
   – Toyota Supra A90 (B58 Gen 3 engine)

• Material: TIG-welded 304 stainless steel for long-lasting strength and corrosion resistance

• Design: High-flow decat design for improved exhaust gas velocity

• Performance Gains: Enhanced turbo spool, improved throttle response, and increased power output

• Sound: Deep, sporty tone with pronounced turbo whistle

• Fitment: Direct bolt-on replacement – no cutting or welding required

• Compatibility: Suitable for both stock and tuned vehicles