Description
Enhance your BMW B58 engine's performance with the Evolution Racewerks Sports Series 4.5" High Flow Catted Downpipe. Designed for the 2016+ 240i, 340i, 440i, 540i; 2017+ X3 M40i, X4 M40i, X5 M40i; and 2018+ Z4 40i models, this downpipe is engineered to deliver a significant increase in horsepower and torque by removing the restrictive factory catalytic converter. It features a high-flow 200-cell metallic catalytic converter, allowing for a higher max horsepower power curve and a faster turbo spool-up, resulting in improved throttle response and reduced turbo lag.
Constructed from 100% 304 stainless steel with precision CNC machined turbocharger V-band flanges and mandrel-bent 4.5" piping, this downpipe is built to withstand high temperatures and provide long-lasting durability. The TIG-welded design ensures superior strength and quality, while the brush finish offers a sleek appearance. Optional features include a high-temperature black thermal coating to reduce underhood temperatures, an additional O2 sensor bung for wideband O2 sensors, and an EGT sensor bung for exhaust gas temperature gauges.
Key Features:
- Fitment for the BMW B58 Engine
- High Flow 200-cell metallic catalytic converter
- Increases horsepower and torque with a higher power curve
- Faster turbo spool-up and better throttle response
- 100% 304 stainless steel construction with TIG welding
- Precision CNC machined turbocharger V-band flange
- Compatible with factory or aftermarket exhaust systems
- Optional high-temperature black thermal coating for heat reduction
- Additional O2 sensor bung and EGT sensor bung options
- Includes all hardware for complete installation
- Made in the USA with a limited lifetime warranty
Fitment:
- 2016+ BMW 240i, 340i, 440i, 540i
- 2017+ BMW X3 M40i, X4 M40i, X5 M40i
- 2018+ BMW Z4 40i
Please Note:
This product is intended for OFF ROAD COMPETITION USE ONLY and is not legal for use on pollution-controlled vehicles on public roads or highways. It is available for sale in all 49 states excluding California. A Vehicle Compliance Waiver must be signed for purchase.
