Performance M
Remus Axle-Back Valved Exhaust Rear Silencer/Back Box for BMW M3 G80 (2021+) S58 | OE Valve Control | Quad 102mm Chrome Tailpipes/Tips | Stainless Steel Performance Muffler Rear Section
Remus Axle-Back Valved Exhaust Rear Silencer/Back Box for BMW M3 G80 (2021+) S58 | OE Valve Control | Quad 102mm Chrome Tailpipes/Tips | Stainless Steel Performance Muffler Rear Section
Heads-up on cancellations & returns: if you cancel an order or return an item, you won't get back 100% of what you paid. We apply a 10% restocking fee, the outbound shipping is non-refundable, and we have to pass on Shopify / PayPal payment processing fees; these aren't returned to us when we refund you. International orders also lose on exchange-rate spread in both directions. If the original packaging is damaged or missing, a reboxing charge applies. For international orders specifically, if you refuse to pay our shipping invoice or supply a prepaid label after placing the order, the same deductions apply. We're upfront about this — please be sure of your purchase before ordering.
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Transform your BMW M3 G80 soundtrack with a premium Remus rear section and quad 102 mm chrome tips
Unlock the true character of your BMW M3 G80 with this Remus rear section featuring built-in valve flaps and stunning quad 102 mm polished chrome tailpipes. It connects to your car’s original valve motors for seamless mode control, delivering a deep, motorsport-inspired tone when you want excitement and a refined note when you want calm. Crafted in Austria from 100 percent stainless steel with a shot blasted finish, this performance rear exhaust brings quality, flow and style in one package.
- Deposits a richer, more purposeful exhaust note with crisp bark under load and a clean, premium idle
- Low back pressure design to support performance and sharper throttle response
- Lightweight construction compared with the bulky factory rear box
- Quad 102 mm straight cut, angled chrome tailpipes for a bold, factory-plus look
- Precision fitment for the BMW M3 G80 S58B30A, 2021 onwards
- Shot blasted, 100 percent stainless steel for durability and corrosion resistance
- Handmade in Austria with meticulous attention to detail
How it behaves
With the valves shut, cruising manners stay civil for everyday driving. Open the flaps via your car’s original drive modes and the volume rises with a deeper, more aggressive tone that suits spirited road and track use. It is the ideal upgrade if you want more emotion without compromising day-to-day usability.
Compatibility
BMW M3 G80 with S58B30A, 353 kW, model year 2021 onwards.
Installation notes
The factory exhaust requires a precise cut at the designated join to fit this rear section. Professional installation is recommended.
For fitting, speak to MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.
Part number
081021 1400 + 081021 1500 + 0046 70SG
Why buy from MJ Modifications
We have installed this Remus setup on customer M3s and the feedback has been superb. Fitment is spot on, the sound is addictive with the valves open and the finish on the chrome tips looks fantastic on the G80 rear end.
Materials and build
Remus utilises premium stainless steel throughout with a shot blasted surface for a robust, high quality finish. The result is a durable rear section designed for longevity, precision alignment and consistent acoustic performance.
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