Free up your BMW B58 turbocharged inline-6 with these EPA-compliant 400 cell high-flow catted downpipes, built to reduce backpressure and unlock a deeper exhaust tone while maintaining emissions compliance standards.
The Gen 2 B58 (B58N) turbocharged inline-6 is one of BMW's most capable modern engines, known for its immense tuning potential and smooth power delivery. Factory catalysts restrict exhaust flow and limit turbo efficiency. These EPA-compliant 400 cell high-flow catted downpipes for the GEN3 B58 platform reduce backpressure, improve turbo spool characteristics and unlock a deeper, more aggressive tone, all while maintaining emissions compliance standards. This upgrade lays the foundation for increased performance on both stock and tuned vehicles.
Key features
- EPA-compliant 400 cell high-flow catalysts for increased exhaust efficiency while maintaining compliance standards
- Faster turbo spool from reduced restriction, enhancing responsiveness and mid-range torque
- Increased tuning headroom that supports higher boost levels compared to restrictive factory catalysts
- Enhanced exhaust character with a deeper tone, stronger turbo acoustics and sharper crackles
- Engineered to pair seamlessly with Valvetronic exhaust systems
Performance and engineering
- Optimised flow architecture that minimises backpressure while preserving catalyst efficiency
- Mandrel-bent tubing with smooth internal transitions for maximum exhaust velocity
- Precision TIG welding built to withstand high exhaust temperatures and elevated boost pressure
- Direct OEM bolt-on installation using factory mounting locations
Sound transformation
- Stock exhaust with downpipes: a noticeable increase in depth and turbo presence with improved clarity
- Valvetronic exhaust with downpipes: maximum transformation, with enhanced crackles, sharper turbo spool acoustics and a more aggressive overall signature
Construction and durability
- Premium high-grade stainless-steel construction
- High-temperature resistant 400 cell catalyst cores
- OEM-style sensor placement for proper operation
- Engineered for long-term reliability under high boost and tuned applications
Why buy from Vero Motorsport
Vero Motorsport is an authorised Valvetronic Designs dealer, with fast Australia-wide shipping and expert support before and after your purchase.
Order online today.
📩 Questions or ordering assistance? info@veromotorsport.com
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Not sure if a part fits your vehicle? Contact us with your make, model, and year before ordering. We will confirm compatibility so you order the right part the first time.
Every product is covered by a 12-month manufacturer-backed warranty from the date of purchase.
Vero Motorsport works with a national network of authorised installers. Contact us with your location and fitment requirements for a recommended workshop in your area.
