$600.00
Take your B48-powered BMW to the next level with the Untd. Performance Catted Downpipe w/ Heat Shield, engineered to maximize performance while keeping exhaust temperatures in check. Designed for the BMW 330i (G20) and 520i/530i (G30/G31) with the 2.0L B48 turbo engine, this downpipe delivers increased power, faster turbo spool, and a refined, sporty exhaust tone—all while incorporating a high-flow 200-cell catalytic converter for streetable performance.
Available on backorder
Take your B48-powered BMW to the next level with the Untd. Performance Catted Downpipe w/ Heat Shield, engineered to maximize performance while keeping exhaust temperatures in check. Designed for the BMW 330i (G20) and 520i/530i (G30/G31) with the 2.0L B48 turbo engine, this downpipe delivers increased power, faster turbo spool, and a refined, sporty exhaust tone—all while incorporating a high-flow 200-cell catalytic converter for streetable performance.
200-Cell High-Flow Catalyst
Upgrading to a 200-cell high-flow catalytic converter significantly improves exhaust flow while maintaining emissions functionality in many regions. It’s the ideal solution for enthusiasts who want performance without going fully catless.
Integrated Heat Shielding
The built-in heat shield helps manage underhood temperatures, protecting nearby components and maintaining performance during high-load driving. Whether you’re stuck in traffic or carving backroads, thermal protection adds peace of mind.
Enhanced Turbo Efficiency & Power
The less restrictive design allows your B48 turbo to spool faster and breathe easier, resulting in quicker throttle response, increased horsepower, and more torque throughout the powerband—especially when paired with performance tuning.
Refined Exhaust Tone
Expect a deeper, more pronounced exhaust note with enhanced turbo sounds—without the excessive volume or drone of a straight-pipe setup. It’s the perfect balance between sporty and daily-drivable.
Durable Construction
Built from 304 stainless steel with TIG welds and CNC-machined flanges, this downpipe is engineered for long-term durability under the heat and pressure of turbocharged performance.
Bolt-On Fitment
Designed for easy installation, this downpipe bolts directly to the factory turbo and exhaust system without the need for modification.
BMW G20 330i / 330i xDrive (B48 Engine)
BMW G30 / G31 520i, 530i / xDrive (B48 Engine)
The Untd. Performance Catted Downpipe w/ Shield is the ideal upgrade for B48 drivers who want more power, sharper response, and a richer exhaust note—while retaining catalytic efficiency. Whether your build is street-focused or weekend-track ready, this downpipe brings balanced performance with OEM-like reliability.
⚠️ Note: May not be emissions-compliant in all areas. Please verify local regulations before installation. For off-road and track use where applicable.
