BMW B48 Catless Performance Downpipe – 220i 330i 420i 430i X1 X2 Z4
*** IMPORTANT NOTE: Order processing can take up to 1-2 business days. Shipping timeframes start after the order processing has been completed. ***
Unlock improved exhaust flow, quicker turbo response and a more aggressive exhaust tone with this high-flow performance downpipe for select BMW models equipped with the turbocharged B48 2.0L engine.
Constructed from durable stainless steel with smooth mandrel-bent piping, this downpipe replaces the restrictive factory catalytic-converter section. The integrated flex joint allows controlled exhaust movement, helping reduce unnecessary stress on the turbocharger and exhaust system.
Features:
- High-flow catless performance design
- Stainless-steel construction
- Smooth mandrel-bent piping
- TIG-welded connections
- Reinforced stainless-steel flex section
- CNC-machined mounting flanges
- Factory-style mounting bracket
- Dual oxygen-sensor provisions
- Reduces exhaust restriction and backpressure
- Supports quicker turbo spool and improved throttle response
- Produces a louder, more aggressive exhaust tone
- Compatible with factory and aftermarket exhaust systems
Designed for select B48-powered models:
- BMW 220i
- BMW 330i
- BMW 420i
- BMW 430i
- BMW X1 25i
- BMW X2 20i and 30i
- BMW Z4 20i and 30i
Important Fitment Information:
BMW used multiple downpipe configurations across B48-powered vehicles and markets. Compatibility must be confirmed by comparing the turbo flange, exhaust connection, oxygen-sensor locations and overall shape with the original downpipe before ordering. Not compatible with B46-equipped vehicles unless otherwise confirmed.
Please Note:
This competition downpipe does not contain a catalytic converter. Installation may trigger a check-engine light and normally requires performance tuning. Professional installation is strongly recommended.
For closed-course competition and off-road use only. Not legal for use on pollution-controlled public-road vehicles and not for sale or use in California. The purchaser is responsible for complying with all applicable emissions laws.
