Performance Catted Exhaust Downpipe - BMW M2 G87

Unlock the full performance potential of your BMW M2 G87 with our Performance Catted Exhaust Downpipe — engineered to optimize exhaust flow, reduce turbo lag, and deliver an aggressive yet refined sound. Designed specifically for the high-performance S58 3.0L twin-turbo inline-6, this downpipe replaces the restrictive factory unit with a high-flow, 200-cell sport catalytic converter, making it ideal for both daily driving and track use.

Crafted from T304 stainless steel and TIG-welded for durability, the downpipe provides a perfect fit and long-lasting performance. Whether paired with a stock tune or a Stage 2 ECU upgrade, this downpipe delivers measurable gains in horsepower, torque, and throttle response.

Key Features:

⚙️ High-Flow 200 CPSI Sport Catalyst

• Emissions-friendly design with reduced restriction vs OEM cat

• Optimized for power without triggering CEL (with proper tuning)

• Ideal for performance builds requiring catted compliance

🏁 Performance Benefits

• Improved exhaust gas velocity and reduced turbo backpressure

• Sharper throttle response and faster turbo spool

• Gains of +20–30 hp and +30–40 lb-ft with tuning

🔥 Thermal Efficiency

• Optional ceramic-coated version for improved heat management

• Reduces under-hood temperatures and heat soak

🛠️ Premium Build Quality

• Constructed from T304 stainless steel for strength and corrosion resistance

• Mandrel-bent piping for smooth, uninterrupted flow

• CNC-machined flanges ensure leak-free, OEM-like fit

• TIG-welded for high-temperature durability

🔊 Enhanced Sound

• Noticeably deeper and more aggressive tone under load

• Amplifies turbo whistle and overrun pops/crackles (when tuned)

• Maintains comfortable cabin noise levels

✅ Fitment:

• Vehicle: BMW M2 G87

• Engine: S58 3.0L Twin-Turbo I6

• Model Years: 2023+

• Fitment Type: Direct bolt-on replacement for OEM downpipe

• ECU Tune Recommended: For maximum power and to avoid CEL

• Compatible With: OEM and aftermarket cat-back exhaust systems

Why Upgrade?

The factory downpipe holds back the full potential of your S58 engine. This Performance Catted Downpipe offers the perfect balance between daily usability and race-ready performance—without compromising emissions compliance. Whether you're chasing lap times or making a statement on the street, this upgrade delivers the sound, power, and response your G87 deserves.

We want you to have our parts as quickly as possible. Products that are in stock will be shipped and delivered domestically in 1–5 business days. It will take seven to twenty-one business days for international shipment. An email confirming that your order is being completed will be sent to you once you place it. For in-house orders, please allow a day for processing and the updating of the tracking number. The product page accurately shows the quantity.

Custom steering wheels typically take 20-25 business days for production, with an additional 5-7 business days for shipping. Production and delivery times may vary depending on the complexity of the order and the shipping destination. For more details, please refer to our Shipping Policy.

Our Return Policy permits returns only for products that are found to be defective. You have 30 days from the date of delivery to inspect the product and report any issues.

Regular Cleaning: Maintain carbon fiber parts by cleaning them regularly with a soft cloth and a mixture of mild soap and water. Avoid abrasive or harsh cleaners that could harm the finish.

Use Microfiber Pads and Cloths: Opt for microfiber pads and cloths when cleaning or applying protective coatings to prevent surface scratches.

Protect from Sun and Chemicals: Limit exposure to direct sunlight and harsh chemicals, as they can damage carbon fiber. When possible, use protective covers or park your vehicle in shaded areas.