Heat Shield Catless Downpipe F30 340i

Heat Shielded Catless Downpipe for BMW F30 340i (B58 Gen 1)

Description:
Unlock your BMW F30 340i’s true performance potential with this Heat Shielded Catless Downpipe, engineered for the Gen 1 B58 engine. By removing the restrictive factory catalytic converter, this upgrade increases exhaust flow and turbo efficiency—resulting in significant horsepower and torque gains when paired with proper tuning.

Equipped with a built-in heat shield, it reduces radiant heat in the engine bay, preserving surrounding components and improving overall thermal performance. Perfect for enthusiasts looking to enhance both power and sound.

Compatible With:

• BMW F30 340i (2016–2018 with B58 Gen 1 engine)

Key Features:

• Heat-resistant shielding for improved thermal control

• High-grade stainless steel construction

• Direct bolt-on fitment

• Noticeable gains in turbo response and top-end power

• Sharper, louder exhaust note

• Power gains of +35–45 HP / +45–55 lb-ft with tune