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Performance M

Remus Axle-Back Exhaust for BMW Z4 G29 M40i 3.0 B58/B58B30C 2018+, Valved Rear Silencer/Back Box, Quad 102mm Carbon Fibre Tips, Titanium Internals, Left/Right Rear Muffler Performance Upgrade

Remus Axle-Back Exhaust for BMW Z4 G29 M40i 3.0 B58/B58B30C 2018+, Valved Rear Silencer/Back Box, Quad 102mm Carbon Fibre Tips, Titanium Internals, Left/Right Rear Muffler Performance Upgrade

£2,919.65
£2,919.65
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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 soundtrack and styling of your BMW Z4 with this premium rear section for the G29 M40i. Designed for the 3.0 B58 turbo engine, it delivers a richer, sportier tone with a quad 102 mm carbon fibre tip upgrade and integrated valve control for everyday refinement and weekend drama.

If you are searching for a BMW Z4 M40i exhaust upgrade, G29 axle-back, performance back box, valved rear muffler, quad tailpipe conversion, carbon fibre exhaust tips or B58 sound enhancement for 2018 onwards cars, this system is the go-to choice. It looks incredible, sounds authentic and fits perfectly.

  • Deep, motorsport-inspired note under load with a refined cruise
  • Quad 102 mm carbon fibre tailpipe finishers with a smart slanted cut
  • Titanium elements inside the silencer for a crisp, high-quality tone
  • Valves operate via the factory electronics for seamless OEM-style control
  • Left and right rear sections tailored to the G29 platform for precise fitment

Compatibility:

  • BMW Z4 G29 M40i 3.0 B58B30C – 2018 onwards

Installation notes:

  • A neat cut to the factory rear section is required as part of the install
  • Valve functionality plugs into the vehicle’s original control system

We have installed this system for customers and the feedback has been fantastic – sharper sound, head-turning looks and quality you can hear and feel. For professional fitting, choose MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk to request a quote and availability.

Part Number: 084019 1500+0446 70CS

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