Skip to product information
1 of 2

Performance M

Remus Axle back System Left/Right with Integrated valves using the OE valve control system with 4 tail pipes Ø 102 mm angled, straight cut, chromed - 3 Series G80 M3 Competition 375 kW S58B30A 2021-

Remus Axle back System Left/Right with Integrated valves using the OE valve control system with 4 tail pipes Ø 102 mm angled, straight cut, chromed - 3 Series G80 M3 Competition 375 kW S58B30A 2021-

Regular price £2,584.28
Regular price Sale price £2,584.28
Sale Sold out
Shipping calculated at checkout.

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.

Transform the character of your BMW G80 M3 Competition with a premium rear section upgrade that keeps your factory valve control fully functional and adds stunning quad 102 mm polished tips.

This Remus rear silencer set is engineered for the 2021-on M3 Competition (S58B30A) and delivers a deeper, motorsport-inspired soundtrack with the convenience of the original flap system. Expect freer flow, reduced restriction and a crisp, high-quality finish that looks as good as it sounds. Crafted in Austria from stainless steel with a bead-blasted texture and mirror-chrome outlets, it offers precision fit and long-term durability.

Key features

  • Valve-controlled rear section retains factory electronics for seamless, plug-and-play operation
  • Quad 102 mm diameter, slash-cut, straight-edge chrome tailpipes for an aggressive, OEM-plus look
  • Full stainless steel construction with a bead-blasted surface for corrosion resistance and longevity
  • Optimised flow path for reduced back pressure and improved response
  • Lightweight design compared to the stock rear box
  • Exact-fit geometry for the G80 platform for hassle-free alignment
  • Expertly built in Austria with meticulous craftsmanship

Why choose this system

  • Real-world upgrade: we have installed this set on customer cars and the feedback on tone, finish and fit has been excellent
  • Keeps comfort on the road with valves closed, unleashes a fierce, track-style note when opened
  • Perfect if you want a high-end quad-exit look without compromising daily usability

Compatibility

  • BMW 3 Series G80 M3 Competition, 2021 onwards
  • Engine: S58B30A 3.0 twin-turbo

Tailpipe style

  • 4 x 102 mm diameter, chromed, angled/straight-cut design

Part number
081021 1400 + 081021 1500 + 0046 70SG

Installation notes
The original rear section requires cutting during fitment. Professional installation recommended.

Fitting service
For supply and installation, choose MJ Modifications in Warwickshire. Request a quote: info@mjmodifications.co.uk

Popular search terms
BMW G80 M3 exhaust upgrade, BMW M3 Competition performance exhaust, S58 valved rear silencer, G80 quad tip exhaust, BMW M3 chrome tips 102mm, valve-controlled rear muffler, stainless steel rear section, European made sport exhaust, Remus G80 M3 rear box, plug and play valve control exhaust, BMW M3 2021 exhaust sound, quad exit slash cut tips, performance rear section for G80.

View full details