Milltek Sport Axle-Back / OPF/GPF‑Back Rear Silencer Back Box/Muffler Exhaust with GT‑115 Cerakote Black Tips for BMW M4 G82 & M4 Competition 2020+ (S58 3.0

British-made rear section upgrade with GT-115 ceramic-coated black tailpipes for BMW M4 G82 and M4 Competition, 2020-on, OPF-equipped models

Transform the soundtrack and presence of your G82 with this Milltek rear exhaust section designed specifically for petrol particulate filter vehicles. Built in the UK from high-grade T304 stainless steel, this precision-crafted system replaces the rear silencer section to unlock a richer, sportier tone with minimal in-cabin resonance. The stealth GT-115 black ceramic tailpipe finishers complete the look for a purposeful, motorsport-inspired rear end on your 3.0-litre twin-turbo straight-six.

We have fitted this system for customers and the feedback has been consistently positive. Fitment is spot on, finish is premium and the sound is exactly what many G82 owners want: deeper at idle, fuller under throttle and civilised on long journeys. If you are searching for a quality UK performance exhaust for your M4 Coupe without deleting the particulate filter, this is a proven choice.

Why enthusiasts choose this rear section

• Designed for BMW M4 G82 and M4 Competition models from 2020 onwards with OPF/GPF
• GT-115 ceramic-coated black tailpipes for a discreet, aggressive appearance
• T304 stainless steel construction for corrosion resistance and longevity
• Mandrel-formed tubing for smooth gas flow and a clean, refined tone
• Engineered to reduce boom and resonance inside the cabin
• Uses factory-style mounting points for a straightforward install
• No software changes or ECU calibration required

Sound and driveability

Tuned to complement the character of the 3.0-litre twin-turbo straight-six, this rear silencer upgrade adds presence without harshness. It enhances cold starts and wide-open throttle while remaining comfortable at cruising speeds. Ideal for daily-driven cars and weekend builds alike.

Compatibility

• BMW M4 G82 Coupe and M4 Competition, 2020-on
• OPF/GPF vehicles only
• Petrol, S58 3.0 twin-turbo engine

What is included

• Rear section assembly for OPF/GPF cars
• GT-115 black ceramic tailpipe finishers
• Fittings as supplied by the manufacturer

Professional installation

For fitting, choose MJ Modifications in Warwickshire. Our team installs these systems regularly and can provide a quote and advice. Email info@mjmodifications.co.uk to book.

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