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  • BMW G80/G82/G83/G87 M2 / M3 / M4 400 Cell Catted Downpipes
BMW G80/G82/G83/G87 M2 / M3 / M4 400 Cell Catted Downpipes
BMW G80/G82/G83/G87 M2 / M3 / M4 400 Cell Catted Downpipes
BMW G80/G82/G83/G87 M2 / M3 / M4 400 Cell Catted Downpipes
BMW G80/G82/G83/G87 M2 / M3 / M4 400 Cell Catted Downpipes
BMW G80/G82/G83/G87 M2 / M3 / M4 400 Cell Catted Downpipes
BMW G80/G82/G83/G87 M2 / M3 / M4 400 Cell Catted Downpipes
BMW G80/G82/G83/G87 M2 / M3 / M4 400 Cell Catted Downpipes
BMW G80/G82/G83/G87 M2 / M3 / M4 400 Cell Catted Downpipes
BMW G80/G82/G83/G87 M2 / M3 / M4 400 Cell Catted Downpipes
BMW G80/G82/G83/G87 M2 / M3 / M4 400 Cell Catted Downpipes
BMW G80/G82/G83/G87 M2 / M3 / M4 400 Cell Catted Downpipes
BMW G80/G82/G83/G87 M2 / M3 / M4 400 Cell Catted Downpipes
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BMW G80/G82/G83/G87 M2 / M3 / M4 400 Cell Catted Downpipes

Valvetronic Designs
BMW.G8X.M2.M3.M4.FF.400C.BR
Motor Vehicle Exhaust
$2,249.99

119 Units In Stock and Available for Purchase

Inventory may change and will be confirmed once your order has been processed.

This item ships as early as the same or next business day. Please allow up to 7–10 business days for processing in some cases.

Lead times are estimated and subject to change.

$2,249.99
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BMW G80/G82/G83/G87 M2 / M3 / M4 400 Cell Catted Downpipes
Description

BMW G8X M2 / M3 / M4 – EPA-Compliant 400 Cell Catted Downpipes

Engineered for the S58 Twin-Turbo Inline-6 • High-Flow • Compliant •

Introducing Our NEW 400 Cell EPA-Compliant Downpipes for the G8X Platform

The BMW G8X M2, M3 and M4 represent the next evolution of M performance, powered by the highly capable S58 twin-turbo inline-6. While factory catalysts prioritize restriction and sound suppression, our NEW EPA-compliant 400 cell high-flow catted downpipes are engineered to reduce exhaust backpressure, enhance turbo efficiency, and unlock a sharper, more aggressive exhaust character — all while maintaining emissions compliance standards.

This upgrade maximizes the performance potential of the S58 platform without compromising drivability.

Why Upgrade to 400 Cell?

  • EPA-Compliant 400 Cell High-Flow Catalysts: Increased exhaust flow while maintaining compliance standards.
  • Improved Turbo Response: Reduced restriction enhances spool speed and mid-range power delivery.
  • Enhanced Exhaust Character: Deeper tone with more defined turbo acoustics and sharper high-RPM presence.
  • Street & Track Ready: Noticeable gains while maintaining everyday usability.

Performance & Engineering

  • Optimized Flow Architecture: Minimizes backpressure while preserving catalyst efficiency.
  • Mandrel-Bent Tubing: Smooth internal transitions for consistent exhaust velocity.
  • Precision TIG Welding: Built to withstand extreme exhaust temperatures and high boost levels.
  • Direct OEM Bolt-On Installation: Utilizes factory mounting locations for straightforward installation.
  • Engineered to Pair Seamlessly with Valvetronic Exhaust Systems

Sound Transformation

  • Stock Exhaust + Downpipes: Noticeable increase in depth and turbo presence with improved exhaust clarity.
  • Valvetronic Exhaust + Downpipes: Maximum transformation — stronger crackles, enhanced turbo spool acoustics, and a more aggressive overall signature.

Construction & Durability

  • Premium high-grade stainless steel construction
  • High-temperature resistant 400 cell catalyst cores
  • OEM-style sensor placement for proper operation
  • Engineered for long-term reliability under high boost and tuning conditions

Unleash the full potential of your S58-powered G8X — starting at the source.

📩 Questions or ordering assistance? customerservice@valvetronic.com

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