Remus Resonated Valved Cat-Back Exhaust for BMW 3 Series 340i F30/F31 LCI (2015+) B58 240 kW - Twin Exit Left/Right, Stainless Steel, OE Valve Control, EEC Approved, 2x84mm Tips - No GPF/OPF

Remus Sports Catback for BMW 340i F30 F31 LCI - Resonated, Valve-Controlled, Dual Outlet

Transform the character of your 3 Series with a premium stainless sports system that unleashes the B58 straight six. This resonated, valve-operated catback delivers a deeper, richer tone under load and a calm, refined note at cruise. Precision built in Austria, it integrates with the factory driving modes for seamless flap control and a true OEM-plus experience. Expect sharper response, reduced back pressure and an exceptional fit on both Saloon and Touring facelift models.

Why this upgrade stands out

• Resonated centre section for a mature soundtrack with aggressive bark when you open it up
• Valve control works with the car’s original flap system - no extra wiring or add-on controller required
• Optimised flow for improved throttle response and lower back pressure
• Lightweight, shot blasted stainless construction for durability and a premium finish
• Twin outlet left and right layout with 2 x 84 mm tailpipes for a perfectly balanced rear
• ECE homologated for road use and hand made in Austria to exacting standards

Compatibility

• BMW 3 Series F30 Saloon and F31 Touring, LCI facelift
• Engine: 340i B58 3.0 turbocharged straight six
• Output: 240 kW
• Years: 2015 onwards
• Vehicle must be non-OPF non-GPF

Tailpipe options - 2 x 84 mm

• Straight tips with carbon insert
• Carbon Race angled tips with carbon ring
• Black Chrome straight tips with carbon insert
• Carbon angled tips with titanium internals

How it sounds and drives

Comfort mode keeps things civil for daily use and motorway cruising. Select Sport or Sport Plus for a deeper, motorsport-inspired note with the valves open and a more responsive feel. It is the ideal balance for an OEM-plus build that you can enjoy every day.

What our team and customers say

Consistently excellent fitment, beautifully finished welds and a proper straight six tone. We have supplied and fitted many of these systems and feedback has been outstanding for both sound quality and refinement.

Fitting and support

Professional installation available at MJ Modifications in Warwickshire. For a fitting quote, availability and tailpipe finish advice, email info@mjmodifications.co.uk.

Approvals and quality

ECE EEC homologated and crafted in Austria. Premium stainless construction with a shot blasted finish for longevity and a factory-quality appearance.

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Notes

Only suitable for vehicles without GPF or OPF.