BMW 4 Series 430d F32 F33 F36 (2013-2020) Quad Exit/Quad Tip M4 Look Axle-Back Exhaust | Rear Silencer/Backbox/Muffler Conversion | T304 Stainless Performance System | Centre-Back | Diesel (Non AdBlue) | Fits M Sport Bumper | UK-Made

BMW 4 Series 430d F32 F33 F36 Quad Tip Rear Section - M4 Look

Transform the rear of your 430d with a premium quad tip rear silencer conversion that delivers the M4 look without compromising daily usability. This UK-made T304 stainless steel system replaces the rear section from the centre back, adding four polished slash-cut tips for a genuine motorsport-inspired finish and an OEM+ appearance on your diesel 4 Series.

Why 430d owners love this upgrade

• Striking M4-look quad tailpipes - twin 3 inch tips per side for a purposeful, factory-style finish
• Refined tone - a deeper, sportier note while keeping volume close to standard for comfortable cruising
• Quality build - fully TIG welded T304 stainless steel with precise fitment
• Centre-back design - retains factory emissions hardware for hassle-free ownership
• All hardware included - supplied with the required clamps and gaskets

Fitment and compatibility

• BMW 430d 4 Series diesel - F32 Coupe, F33 Convertible, F36 Gran Coupe
• Model years 2013 to 2020
• M Sport rear bumper required
• Quad outlet lower rear panel needed for installation - matching diffuser available separately
• Does not fit AdBlue models

Essential details

• Pipework diameter: 3 inch / 76.2 mm
• Configuration: centre section backwards, replaces standard rear box
• Tailpipes: quad exit, polished slash cut stainless steel
• Cutting of the original pipework is required for fitment

Matching diffuser - save when you bundle

Pair this quad tip system with the correct quad outlet lower valance for a perfect finish. Save 30% on the matching rear diffuser when purchased together.

Rear diffuser part code: RP03

(Retail customers only. See related products.)

What you will notice

• Instant visual upgrade - the rear end looks wider, lower and more aggressive
• Subtle acoustic enhancement - a cleaner, richer diesel tone without unwanted drone
• Premium materials - corrosion resistant T304 for long-term durability

Pro installation available

We have fitted this setup in-house many times and our customers love the transformation. For fitting, choose MJ Modifications in Warwickshire - request a quote at info@mjmodifications.co.uk.

Search-friendly terms

BMW 4 Series 430d quad tip exhaust, F32 F33 F36 rear silencer upgrade, back box conversion, quad tailpipe kit, M4 look diffuser, M Sport rear bumper, stainless steel exhaust, centre section back system, twin exit per side, 4 pipe rear conversion, polished tips, T304 TIG welded, non AdBlue compatibility.