Engineered specifically for B58tu2 Engine, this high-performance 5 Inch B58 downpipe is compatible for Gen3 BMW models, including the G20 M340i, G22 M440i, G60 540i, G70 740i, G45 X3, G05 X5, G06 X6, G07 X7.

Constructed entirely from premium stainless steel, it features a stainless steel flex joint and an inner stainless liner. Expertly TIG welded and back-purged, the Palenon downpipe offers outstanding structural integrity, thermal durability, and long-term reliability.

Designed to enhance exhaust flow with a consistently larger diameter right after the turbo, this downpipe delivers a deeper, more aggressive exhaust note, faster turbo spool, and measurable power gains. It is fully compatible with both OEM and aftermarket exhaust systems, ensuring a seamless installation.

Elevate your driving experience with performance, precision, and sound—redefined.

If you have Previous Years Gen1 & Gen2 Model Check these B58 Downpipe

Features

• Maximum Flow: 5 Inch Inner diameter and 6 Inch Outer diameter with smooth transitions enhances exhaust flow and reduces restriction.
• Faster Spool: Improved turbo response and quicker spool times.
• Increased Power: 35HP+ Noticeable horsepower and torque gains with proper tune.
• Aggressive Exhaust Note: Enjoy a richer, more aggressive sound.
• Easy Installation: Fits both right and left-hand drive vehicles without modifications.
• Warranty: We offer lifetime warranty. 

Our racing-grade downpipes are expertly crafted from premium stainless steel, using precise and standardized bending techniques to ensure optimal performance and thrilling exhaust note. Our downpipe pricing is U.S. market guaranteed. With an unwavering commitment to both price and quality, we adhere to a "customer-first" standard, ensuring that our products exceed expectations without compromise.

Cel Delete Kit

Installing b58 catless downpipes will trigger a check engine light (CEL) due to the absence of OEM catalysts. To eliminate the CEL without a tune, we offer a CEL Delete Kit featuring O2 sensor spacers that comply with BMW’s emissions parameters, effectively removing the CEL.

Vehicles manufactured from 2019 onward are highly sensitive, and the Check Engine Light (CEL) may not always be eliminated. However, the modification may help delay its activation.

OPF and Non OPF

The OPF is a gasoline particulate filter integrated into the exhaust system of modern turbocharged petrol engines. Its primary function is to capture soot and fine particles produced during combustion, particularly under high-pressure direct injection, thereby reducing particulate emissions. Functionally, it is similar to a diesel DPF but specifically engineered for petrol engines.

Choose downpipe according to your car. 

Why Choose Palenon Performance?

At Palenon Performance, we pride ourselves on crafting premium exhaust solutions. Our 4.5 Inch bmw B58 Downpipe is built with top-grade stainless steel and advanced manufacturing techniques for unmatched durability and performance. With a commitment to innovation and customer satisfaction, our skilled team continually pushes the limits to deliver high-quality, high-performance parts.

Upgrade your BMW’s exhaust system with Palenon Performance’s B58 Downpipe and experience the ultimate in power and sound. Order today to transform your driving experience!

Fitment

BMW 3 Series

• 2025+ BMW M340i/M340iX G20 LCI/G21 LCI

BMW 4 Series

• 2025+ BMW M440i/M440iX G22/G23/G26 LCI

BMW 5 Series

• 2024-Present BMW 540iX / 550eX G60/G61

BMW 7 Series

• 2023-Present BMW 735i/740i/740ix/750eX/M760eX G70

X Series

• 2025+ BMW X3 M50 G45 
  
• 2023+ BMW X5 LCI 40i/40iX/50eX G05
  
• 2023+ BMW X6 LCI 40iX G06
  
• 2023+ BMW X7 LCI 40iX G07
  
• 2023+ BMW XM 50e G09