BMW F20 F22 F30 F32 N55 4.0" CATTED DOWNPIPE

Unlock the true performance of your N55 engine with this 4.0" High-Flow Catted Downpipe, designed for both power and drivability. Featuring a 200 cell high-flow catalytic converter, this downpipe improves exhaust flow while keeping emissions compliance in check, delivering more horsepower, torque, and faster turbo spool along with a refined, aggressive exhaust tone.

Crafted from premium stainless steel with TIG-welded construction and CNC-machined flanges, the 4.0" to 3.0" stepped design ensures durability, precision fitment, and long-lasting performance. Ideal for enthusiasts who want performance gains without going fully catless.

FITMENT (N55 3.0L Turbo Engines):

• BMW M135i (F20/F21)

• BMW M235i (F22/F23)

• BMW M2 (F87, N55)

• BMW 335i (F30/F31/F34)

• BMW 435i (F32/F33/F36)

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