Remus GPF back Racing System Left/Right with Integrated valves using the OE valve control system with 4 Carbon tail pipes Ø 102 mm angled, Titanium internals - 3 Series G80 M3 Competition 375 kW S58B30A 2021-

Transform the sound and look of your BMW G80 M3 with a premium valved rear section that delivers a richer, harder‑hitting tone and a motorsport finish. This high quality upgrade retains your factory valve operation, adds stunning 102 mm angle cut carbon fibre tailpipes and uses a free flowing layout to reduce restriction for sharper response. Built to last with full stainless construction, titanium internals and a shot blasted finish, it is precision engineered for an exact fit on the G80 M3 Competition 2021 onwards with the S58B30A engine.

Part Number: 081021 1300 + 081021 1400 + 081021 1510 + 0046 70CS

Key benefits

• Valve controlled sports exhaust tone that stays civil when closed and delivers a fierce, track inspired soundtrack when open
• Quad 102 mm angle cut carbon fibre tailpipes that fill the diffuser and elevate the rear end styling
• Reduced back pressure for improved flow and performance potential
• Lightweight construction for a sportier feel
• Shot blasted surface and full stainless build with titanium internals for durability and heat resistance
• Handmade in Austria with exceptional attention to detail and OEM level fit

Fitment and installation

Vehicle: BMW 3 Series G80 M3 Competition 2021 onwards S58B30A.

Install note: the original system must be cut during fitting. Keeps the factory valve electronics so your driving modes work as intended.

Want it fitted professionally? Book with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

What owners are saying

We have installed this upgrade for customers and the feedback has been outstanding. Drivers love the deep idle, crisp, motorsport‑style note under load and the refined cabin character with the valves closed. The 102 mm carbon tips are a genuine visual upgrade that looks right at home on the G80.

Why this is the right upgrade for your M3

If you want a valved rear section that looks as good as it sounds, this is the smart choice. You get a freer flowing, performance focused layout, premium materials, a beautiful bead blasted style finish and precise fitment, all while retaining factory valve control. It is a straightforward upgrade that transforms both presence and soundtrack.

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