4" Catless Downpipe — BMW N20 (F20 125i · F22 220i/228i · F30/F31/F34 320i/328i · F32/F33/F36 420i/428i)

A 4-inch catless (de-cat) downpipe for the BMW N20 2.0L turbo. It replaces the restrictive factory downpipe and catalytic converter to free up exhaust flow, sharpen turbo spool and response, and give the N20 a deeper, meaner note.

WHAT'S INCLUDED

4" catless downpipe (304 stainless) · dimpled heat shield wrap · braided flex section · 2 x O2 sensor bungs · support bracket mount.

FITS (N20 2.0T ENGINE ONLY)

• BMW F30 / F31 3 Series: 320i, 328i (2012–2015)
• BMW F34 3 Series GT: 320i GT, 328i GT
• BMW F32 / F33 / F36 4 Series: 420i, 428i (2013–2016)
• BMW F22 / F23 2 Series: 220i, 228i (2014–2016)
• BMW F20 / F21 1 Series: 125i (2013–2016)

RWD and xDrive. Auto and manual.

DOES NOT FIT

B48 / B46 engines (2015–16 LCI onwards: 330i, 430i, 230i and later 320i/420i) · 116i / 118i / 120i (N13) · F10 5 Series · X1 · X3 · X4 · Z4. Not sure? Send us your VIN and we'll confirm it's an N20 before you order.

SPECS

Engine: BMW N20 2.0T. Diameter: 4 inch. Configuration: catless (de-cat). Material: 304 stainless steel. Heat shield, flex section, twin O2 bungs. Requires a custom tune.

FITMENT (PERTH)

Sold standalone and unfitted for $499. Local to Perth? We'll supply and fit it in-house for $859 supplied & fitted. Just ask when you order. Tuning is also available in-house.

Please note: catless (de-cat) downpipes remove emissions equipment and are intended for off-road / competition use. They require a tune or O2 adjustment to avoid an engine light and are not road legal in WA.