Product Details

• Straight-through design allows for maximum power and sound.
• Straight-through tubing section replaces the heavy and restrictive OEM catalytic converters for maximum power and sound
• Includes flex joint to reduce vibration from the engine and allows alignment during installation
• Improves horsepower and torque significantly. Approximately 25 HP with a tune.
  
• Direct bolt-on replacement for OEM primary catalytic converters
  
• Less thermal load on the turbocharger
  
• Reduces turbo lag

This downpipe is for vehicles with a FLANGE-style midpipe connection. BMW changed this connection on B58 models around 2020–2021, and the change did not happen at the same point for every model. Before ordering, look at where your factory downpipe meets the midpipe. A flange connection has a machined flange on the downpipe outlet that mates to a matching flange on the midpipe. If your car has a smooth slip-fit connection held by a band clamp instead, order the smooth-style version: 130 10 58 100 (catless) or 130 10 58 150 (catted).
Not sure which you have? Provide your VIN with your order and we’ll confirm the correct fitment before shipping.