Introducing our new Competition Series 4" Downpipes for your BMW B46 four cylinder turbo engine! Fits all 2016+ 230i / 330i / 430i / 530i / X3 30i / X4 30i! The B46 engine is found in all U.S. spec cars. The downpipe is different than the B48 found in the EU / Asia spec cars. You must get the correct downpipe for your car as they are not interchangeable.
CAUTION: This product is intended for OFF ROAD COMPETITION USE ONLY. Not legal for use on pollution controlled vehicles upon public road/highways. THIS PRODUCT IS FOR SALE FOR ALL 49 STATES EXCLUDING CALIFORNIA. In addition to vehicle use verification, a Vehicle Compliance Waiver needs to be signed.
THIS ITEM IS NOT FOR SALE, INSTALLATION, OR USE ON LICENSED VEHILES IN THE STATE OF CALIFORNIA.
The item is for sale for international customers without restriction.
Key Features:
- Now available for the 2016+ BMW 230i / 330i/ 430i / 530i B46 Engine!
- Horsepower gains of 14 to 16whp average (gains will vary based on modifications of your vehicle).
- Higher Max Horsepower Power Curve
- Torque gains of 20 wtq average (stock boost) up to over 24 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.