Remus Valved Cat-Back/Rear Section Exhaust for BMW M4 G82 (2021+) – OE Valve Control, Stainless Steel, Quad 102mm (4in) Angled Rolled Chrome Tips – M4 Competition S58 353kW Performance Sport/Active Exhaust Upgrade

Remus performance exhaust upgrade for BMW G82 M4

Unlock a true motorsport soundtrack and sharper response on your BMW M4 with this Remus rear section system engineered for the S58 platform. Designed to work seamlessly with the car’s factory valve electronics, it delivers an addictive, valve-controlled tone for road and track use while keeping everyday refinement when you want it.

This system features quad 102 mm outlets with angled, rolled lips in a bright chrome finish for a purposeful OEM-plus look that suits the rear bumper perfectly. Built entirely from high grade stainless steel with a shot-blasted surface, the construction is light, strong and made to perform.

Why choose this Remus system

• Thunderous motorsport sound with valve operation retained via the original actuators
• Full stainless steel construction with a shot-blasted finish for durability and heat resistance
• Freer-flowing design for reduced backpressure and a tangible performance uplift
• Lightweight build to help trim mass over the rear axle
• Precision fitment for the M4 platform with perfectly aligned quad tips
• Handmade in Austria by Remus for exceptional quality control

Fitment and compatibility

Vehicle: BMW M4 G82 Competition, S58B30A, 353 kW, 2021 onwards

Tip style: Quad 102 mm, angled with rolled edges, chrome finish

Valve control: Utilises the car’s original valve control system

Installation notes

The factory exhaust requires a cut for installation. Professional fitting is recommended.

Want it installed properly first time? Book fitting with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Part number

081021 1100 + 081021 1200 + 081021 1300 + 081021 1400 + 081021 1510 + 0046 70S

What our customers say

We have fitted this setup for multiple M4 owners who love the deeper idle, crisp upshifts and the way it wakes up the S58 without unwanted harshness. The finish on the chrome rolled tips and the valve integration get consistent praise.

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