Evolution Racewerks Sports Series 4" High Flow Catted Downpipe for B46 Engine (US Spec)

Key Features:

• Now available for the 2016+ 230i / 330i / 430i / 530i / X3 30i / X4 30i / Z4 30i/20i.B46 Engine!
• High Flow 200 cell metallic catalytic converter used
• Horsepower gains of 9 to 11 whp average (gains will vary based on modifications of your vehicle).
• Higher Max Horsepower Power Curve
• Torque gains of 15 wtq average (stock boost) up to over 20 wtq (Software upgrade) (gains will vary based on modifications of your vehicle).
• Higher Intial Torque Curve.  Torque curve hits faster and higher and longer.
• Better throttle response and faster turbo spool up times.
• Mandrel Bent 4" piping.  Smooth transition to the exhaust system.
• 100% Stainless Steel Construction
• 100% TIG welded for better quality welds
• Precision CNC machined turbocharger V-Band flange.
• Precision CNC machined ball joint flange with straight flow interior (versus factory press formed ball joint)
  
• Stainless steel flex section like factory that allows proper exhaust movement and flexibility.
• Mirror polish or brush finish
• Available with high temperature black thermal coating to reduce underhood temperatures.
• Optional - Additional O2 sensor bung for wideband O2 sensors (comes with pre-installed plug)
• Optional EGT sensor bung for EGT gauges (comes with pre-installed plug)
• Retains the factory "ball" type v-band connector.
• Improved design of "ball" connector for better flow characteristics over factory connector.
  
• Compatible with the factory or aftermarket exhaust systems.
• Track tested durability.
• Includes all hardware for complete installation.
• Limited Lifetime Warranty.
• Made in the USA!