Alpha Competition Decat Downpipes BMW X3M / X4M F9x

Alpha Competition decat downpipe kit designed for BMW X3 M F97 and X4 M F98 models equipped with the S58 3.0 Twin-Turbo engine.

Manufactured from high-quality T304 stainless steel, these high-flow decat downpipes feature an 80 mm (3.15") diameter and a catless design to reduce exhaust backpressure, improve exhaust gas flow and enhance turbocharger response.

The downpipes feature handmade TIG welds and provide a measured power gain of approximately 35 hp on a Stage 1 tuned engine, delivering a more aggressive exhaust sound and improved engine performance.

The kit includes 2 stainless steel downpipes and installation hardware. Direct-fit installation requires no modifications. This version is supplied with thermal heat shielding designed to reduce radiant heat by up to 50%. Lifetime warranty included.

Brand: Alpha Competition
Reference: AC-F97-DPHS
Engine: S58 3.0 Twin-Turbo
Material: T304 Stainless Steel
Diameter: 80 mm (3.15")
Catalytic Converter: None (Decat)
Option: With Heat Shield
Kit Contents: 2 Downpipes + Installation Hardware

Compatible models:
BMW X3 M F97 2019–2024 – 3.0 Twin-Turbo 480 hp
BMW X3 M Competition F97 2019–2024 – 3.0 Twin-Turbo 510 hp
BMW X4 M F98 2019–2024 – 3.0 Twin-Turbo 480 hp
BMW X4 M Competition F98 2019–2024 – 3.0 Twin-Turbo 510 hp

Note: ECU remapping is mandatory. These decat downpipes are intended for motorsport/off-road applications and are not suitable for public road use where catalytic converters are mandatory.