Description
The Evolution Racewerks Competition Series Mid Pipe is engineered to improve exhaust flow, increase power potential, sharpen throttle response, and deliver a deeper and more aggressive exhaust note for BMW’s B46-powered G chassis models. Designed for the 2019–2024 BMW 330i and 430i, this mid pipe replaces the restrictive factory secondary catalytic converters with free-flowing mandrel-bent tubing to reduce backpressure and unlock performance.
Constructed from 100 percent 304 stainless steel, the Evolution Racewerks mid pipe features mandrel-bent 3-inch (80 mm) tubing, billet CNC-machined flanges, TIG-welded assembly, and a brushed stainless finish. It retains the factory hanger bracket and uses high-quality exhaust clamps to connect to the rear muffler section. The result is a track-tested, fully bolt-on upgrade that is compatible with both the factory exhaust and aftermarket systems designed to work with OEM mid pipes.
Weight reduction is also significant. This Competition Series Mid Pipe weighs only 8 lbs (3.7 kg), compared to the factory’s 20 lbs (9.1 kg), delivering a 40 percent weight savings while freeing up exhaust flow.
Fitment Information
Direct fit for the following BMW models equipped with the B46 2.0L turbo engine:
- BMW 330i (G20/G21): 2019–2024
- BMW 430i (G22/G23/G26): 2021–2024
Compatible with the factory exhaust system and aftermarket exhaust systems engineered for factory mid pipe fitment.
Key Features
- Designed for the 2019–24 BMW 330i (G20/G21) and 430i (G22/G23/G26)
- Higher maximum horsepower power curve
- Higher initial torque curve with faster and stronger torque delivery
- Deeper and more aggressive exhaust sound
- Improved throttle response and faster turbo spool-up
- 8 lbs (3.7 kg) mid pipe weight vs 20 lbs (9.1 kg) factory weight
- Mandrel-bent 3-inch (80 mm) stainless piping
- Smooth exhaust flow transitions
- 100 percent 304 stainless steel construction
- 100 percent TIG-welded for superior strength
- Precision CNC-machined billet flanges
- Brushed finish
- Retains factory hanger bracket
- High-quality exhaust clamps included
- Fully compatible with factory and aftermarket exhaust systems
- Track-tested durability
- Includes all required installation hardware
- Limited Lifetime Warranty
Performance Benefits
Factory mid pipes incorporate secondary catalytic converters designed to quiet exhaust flow but also restrict it. These restrictions increase backpressure, reduce turbo efficiency, and limit horsepower and torque output. The Evolution Racewerks Competition Series Mid Pipe eliminates these secondary catalytic converters to increase exhaust flow and reduce backpressure, resulting in:
- Increased horsepower potential
- Improved torque delivery
- Faster turbo spool
- Sharper throttle response
- More aggressive overall exhaust character
Mandrel-bent tubing maintains consistent internal diameter and reduces turbulence throughout the exhaust path.
Construction Quality
Evolution Racewerks fabricates each mid pipe in-house in the USA using 100 percent 304 stainless steel.
Key construction highlights include:
- TIG-welded stainless steel components for strength and longevity
- CNC-machined billet flanges for precise fitment
- Laser-cut factory-style bracket hanger
- Brushed stainless steel finish
- High-quality clamps for secure attachment
All components are designed for durability and long-term performance under both street and track conditions.
