ICP BMW N54 Downpipe (135i – E82/E88)

The ICP BMW N54 Downpipe for the E82/E88 135i transforms performance by improving exhaust flow and turbo response. This bolt-on upgrade delivers sharper spool, a more aggressive exhaust tone, and impressive horsepower gains with tuning.

Engineered from high-grade stainless steel with CNC flanges and TIG welds, the ICP N54 Downpipe guarantees strength and OEM-like fitment. Both catless and catted options come standard with heatshielding.

Fitment:

• BMW 135i (E82/E88) 2008–2012

Key Features:

• Designed for BMW N54 twin-turbo inline-6 (135i)
• Catless and catted options with heatshield
• Gains of +30–40 HP with tune
• Direct bolt-on, no cutting or welding
• Aggressive induction and exhaust tone