S58 Catless Downpipes - M3/M4 G8X

Catless Downpipes – S58 Engine | BMW M3/M4 G80/G82/G83 (2021+)

Take your G8X to the next level with our S58 Catless Downpipes, designed to unlock maximum performance from your twin-turbo inline-6. By eliminating the restrictive factory catalytic converters, these downpipes drastically improve exhaust flow, reduce turbo lag, and bring out the raw sound of your M3 or M4.

Key Features:

• 🔥 Maximum Power Gains
  Free up significant horsepower and torque by removing factory backpressure and allowing your turbos to breathe.

• 🏁 Pure, Aggressive Sound
  Unleashes the full tone of the S58—crisper turbo spool, deeper exhaust note, and sharp crackles on overrun.

• ⚙️ OEM-Like Fitment
  Direct bolt-on for the G80/G82/G83 platform. Precision-engineered to work with both stock and aftermarket exhaust systems.

• 🛠️ Premium T304 Stainless Steel Construction
  Crafted with TIG welds, smooth mandrel bends, and CNC flanges for strength, longevity, and performance under high heat.

• ⚡ ECU Tune Recommended
  To fully unlock power and avoid CEL (Check Engine Light), an ECU tune is strongly recommended after installation.

Vehicle Compatibility:

• BMW M3 G80 (2021+)

• BMW M4 G82 Coupe (2021+)

• BMW M4 G83 Convertible (2021+)

• Fits all S58-powered G8X models

Note: These downpipes are for off-road/race use only and are not CARB compliant. Please check local emissions regulations before purchase and installation.