BMW 4 Series (G22/G23) Carbon Fibre M Performance Tips - OEM Style Larger 4" Slip-on Replacement Tailpipes

Give your BMW a sharper, sportier rear end with carbon exhaust tip upgrades

Refresh the look of your BMW with Cobra Sport carbon fibre end trims. These premium exhaust outlets deliver a bold, motorsport-inspired finish while keeping a true factory-style appearance that suits the G‑series perfectly.

Designed as a direct push‑fit on the original locator pins, these 101.6 mm end pipes sit wider and fuller in the diffuser for a tougher stance and a cleaner, high-end finish. They are over 10 percent larger than the standard items, replacing tired, rusty tailpipe pieces with a durable carbon upgrade that resists corrosion and elevates your car’s presence on the road.

Why enthusiasts choose this upgrade

• 101.6 mm diameter tips for a more aggressive, premium look
• Direct replacement on OE locator pins with no cutting or modification required
• Supplied as a matched pair for a perfectly balanced finish
• Replaces BMW part number 18308485758
• High quality carbon construction to combat the common rusting of stock trims
• Factory-style fit and alignment for a clean, OEM+ aesthetic

Fitment

Developed for a wide range of BMW G‑series models running B48 and B57 engines:

• BMW 2 Series G42: 218i, 220i, 230i, 220d
• BMW 3 Series G20/G21: 318i, 320i, 330i, 330e, 320d, 330d
• BMW 4 Series G22/G23: 420i, 430i, 420d, 430d

Real-world results

We have fitted these Cobra Sport carbon ends for customers and on our own cars. The transformation is immediate: a deeper, more purposeful rear view, OEM-level fitment and a quality finish that stays looking great. Feedback has been consistently positive, with owners praising the simple install and the premium appearance.

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Installation and support

Slip-on design for quick, hassle-free fitting on the original back box outlets. For professional installation, book with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a fitting quote.

Brand: Cobra Sport. Supplied as a pair. One year warranty included.