Remus Rear Silencer Left/right Vacuum Operated Valves Controlled By Oem System For A5 8T Coupe Rs5 4.2 Fsi

Transform the soundtrack and response of your Audi RS5 V8 with a premium valved axle-back system

Give your 4.2 V8 the voice it deserves with this Austrian hand-built performance rear section. This twin back box setup features vacuum‑actuated valve flaps that integrate with your factory controls, delivering a refined tone in comfort and an exhilarating roar in dynamic. Expect sharper throttle response, reduced exhaust back pressure and a high quality motorsport finish.

We have fitted this system in our own workshop and it is a customer favourite for the B8 platform. Owners love the deep, rich idle, crisp upshifts and the ability to switch from civil to aggressive at the touch of a button through the car’s standard control system.

Why choose this performance exhaust upgrade

• Switchable valved sound using the vehicle’s factory vacuum control
• Sporty, race-inspired tone without unwanted drone
• TIG‑welded, shot‑blasted T304 stainless steel for maximum durability
• Optimised flow for lower back pressure and a noticeable performance gain
• Lighter than stock for improved weight distribution
• Direct replacement fit with OE mounting points and perfect alignment
• Handmade in Austria with exceptional build quality
• EEC homologation for road use

Compatibility

• Audi RS5 4.2 V8 FSI, chassis 8T Coupe, B8/B8.5, 2012 onwards
• Engine output reference: 331 kW
• Fits vehicles built without OPF/GPF only

What you get

• Left and right rear mufflers with integrated vacuum valve flaps
• All components engineered for plug‑and‑play connection with the factory system

Fitting and support

Professional installation recommended. Book your install with MJ Modifications in Warwickshire. For a fitting quote or product advice, email info@mjmodifications.co.uk.

Search-friendly terms

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Note: Only suitable for cars without GPF/OPF.