• GUARANTEED FITMENT
  • COMPETITIVE PRICING
  • FREE SHIPPING ON ALL ORDERS ABOVE 149$ CAD*
Valvetronic Designs 400 Cell Catted Downpipes - BMW Gen3 B58N
Valvetronic Designs 400 Cell Catted Downpipes - BMW Gen3 B58N
Valvetronic Designs 400 Cell Catted Downpipes - BMW Gen3 B58N
Valvetronic Designs 400 Cell Catted Downpipes - BMW Gen3 B58N
Valvetronic Designs 400 Cell Catted Downpipes - BMW Gen3 B58N
  • SKU: BMW.B58.GEN3.FF.400C.BR
  • Availability: In stock Usually ships within 5-7 Days Special Order 4-6 Weeks

Valvetronic Designs 400 Cell Catted Downpipes - BMW Gen3 B58N

$2,859.99

RECENTLY VIEWED PRODUCTS

DESCRIPTION

Engineered for the Gen 2 B58 Turbocharged Inline-6 • High-Flow • Compliant • 


Introducing Our NEW 400 Cell EPA-Compliant Downpipes for the GEN3 B58 Platform

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. However, factory catalysts restrict exhaust flow and limit turbo efficiency. Our NEW EPA-compliant 400 cell high-flow catted downpipes are engineered to reduce backpressure, improve turbo spool characteristics, and unlock a deeper, more aggressive exhaust tone — all while maintaining emissions compliance standards.

This upgrade lays the foundation for increased performance on both stock and tuned vehicles.


Why Upgrade to 400 Cell?

  • EPA-Compliant 400 Cell High-Flow Catalysts: Increased exhaust efficiency while maintaining compliance standards.
  • Faster Turbo Spool: Reduced restriction enhances responsiveness and mid-range torque.
  • Increased Tuning Headroom: Supports higher boost levels compared to restrictive factory catalysts.
  • Enhanced Exhaust Character: Deeper tone with stronger turbo acoustics and sharper crackles.

Performance & Engineering

  • Optimized Flow Architecture: Minimizes backpressure while preserving catalyst efficiency.
  • Mandrel-Bent Tubing: 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: Utilizes factory mounting locations for straightforward installation.
  • Engineered to Pair Seamlessly with Valvetronic Exhaust Systems

Sound Transformation

  • Stock Exhaust + Downpipes: Noticeable increase in depth and turbo presence with improved exhaust clarity.
  • Valvetronic Exhaust + Downpipes: Maximum transformation — enhanced crackles, sharper turbo spool acoustics, and a more aggressive overall signature.

Construction & 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
DOCUMENTS
AVAILABILITY

Eurosport Performance does not have live inventory. Although we aim shipping out not stocked products within 5 business days, supply constraints, import proceedures and product availability can cause additionnal delays. Please refer to the table below for more accurate details. 

In stock - We have the item in stock at our warehouse and you can expect fulfillment within 24 hours.

Usually ships within 5-7 business days - We must import this product from our supplier or the manufacturer. Standard import proceedures take between 5-7 business days and you can expect fulfillment within 8 business days.

Back ordered - This product is out of stock at our warehouse with units in transit from our supplier. Fulfillment can vary. 

If you wish to have a more accurate ETA, please send us a message at info@es-performance.com and we will respond within 24-48h. 

WARRANTY

12 Months

All products sold by Eurosport Performance are warrantied against manufacturing defects according to the manufacturer's warranty policy*. Warranty does not cover abuse, misuse, damages caused from improper manipulation, normal wear and tear, improper installation, or damages resulting from racing. Warranties only apply to the original owner. If a product is found defective, the customer will receive, at the discretion of Eurosport Performance, a replacement part at no extra cost.

* Conditions may apply. Please visit our Refund Policy or contact us at info@es-performance.com

REVIEWS