BMW X4 M40i B58 Catless Downpipes — B58 3.0L Single-Turbo Inline-6 | 2016+
YPG Motorsport catless downpipes for the BMW X4 M40i F26 equipped with the B58 3.0L single-turbo inline-6. Removing the factory catalytic converters frees exhaust flow downstream of the turbocharger, delivering faster spool, sharper throttle response, and measurable power gains. The X4 M40i is one of BMW's most underrated performance platforms — expect a deeper, more aggressive straight-six tone with turbo whistle and crackle on overrun.
Direct bolt-on replacement — no cutting, welding, or fabrication required.
Specifications
- Material: SS304 stainless steel — corrosion-resistant, race-proven
- Construction: 100% mandrel-bent, fully TIG-welded
- Fitment: Direct bolt-on — BMW X4 M40i F26 (B58, 2016+)
- Warranty: Lifetime — YPG Motorsport
- Made in Germany
⚡ Recommended Pairing
Downpipes + ECU tune = maximum gains.
Ships worldwide. Sold by YPG Motorsport — Kuwait.
Frequently Asked Questions
Which BMW models do these downpipes fit?
These downpipes fit the BMW X4 M40i F26 equipped with the B58 3.0L single-turbo inline-6 engine (2016+ model years).
Do I need an ECU tune with downpipes?
Highly recommended. Downpipes paired with an ECU calibration produce maximum combined power gains, optimize air-fuel ratios, and eliminate check engine lights.
Do you ship worldwide?
Yes. Free worldwide shipping on all YPG Motorsport products. GCC delivery typically 3–5 business days.



