Milltek Sport Secondary Catalyst Bypass Midpipe – BMW M2 (G87, S58)

Unleash deeper, purer engine tone with enhanced flow. The Milltek Sport secondary catalyst bypass midpipe is a top-tier upgrade for BMW M2 owners seeking aggressive acoustics and improved exhaust dynamics without altering the factory downpipes or cat-back system.

🔧 Performance & Sound Highlights

• Secondary Catalyst Bypass Design – Eliminates the rear catalytic converters to deliver a richer, more aggressive exhaust note and increased exhaust gas flow.

• Non-Resonated Layout – Amplifies engine character, producing a track-inspired tone that's louder under load and crisper when accelerating, without excessive cabin drone.

• Mandrel-Bent 2.75" (70mm) Stainless Piping – Ensures consistent diameter for smooth gas flow, reducing turbulence and boosting throttle response.

🛠 Construction & Fitment

• Built entirely from T304L stainless steel, providing exceptional resistance against corrosion, heat, and wear.

• Specifically engineered for BMW 2 Series G87 M2 with S58 engine, fitting between the factory downpipes and the OEM or aftermarket cat-back system.

• Designed for easy bolt-on installation, using existing mounting points—no cutting or fabrication required.

🏁 Benefits & Upgrades

• Enhanced throttle response and improved turbo spool behavior.

• Significantly richer and more aggressive exhaust soundtrack tailored for track or spirited driving.

• Lightweight and durable construction engineered for longevity.

• Provides a stealthy performance upgrade, keeping your factory look while delivering a bolder tone.

⚠️ Important Considerations

• This midpipe is not street emissions compliant in many regions; it is intended for off-road or track use only.

• Removal of the secondary catalysts may trigger engine warning lights or emissions alerts without proper tuning or ECU modifications.

• OEM cat-back systems are compatible; pairing with a performance exhaust system can further maximize flow and acoustic enhancement.