Genuine BMW Performance Rear Back Box/Muffler Exhaust for 3 Series Coupe/Convertible E92/E93 320d N47D20 diesel - Stainless Steel Twin 74mm Chrome Tips - OEM Direct Fit - OE 18302185803 - Rear Silencer Tailbox Upgrade/Replacement

OE BMW Sports Rear Box Upgrade for 3 Series E92 E93 320d N47 - Part 18302185803

Looking to sharpen the sound and finish of your 2.0d without sacrificing refinement? This original BMW Performance rear section is the factory upgrade back box for the E92 and E93 320d with the N47 engine, complete with twin 74 mm polished chrome outlets and high quality stainless steel construction for long term durability. It replaces the oval tailbox with a freer flowing end silencer that delivers a deeper, sportier diesel note above 2,000 rpm while keeping the cabin calm on a cruise.

Designed and validated by BMW with computer aided design and finite element analysis, the geometry and brackets match factory points for an exact fit. Flow restriction is reduced for improved breathing, the finish is premium, and the look is unmistakably OEM with dual chrome tips neatly filling the rear valance.

We have fitted and run this rear silencer on our own cars and for many customers. Feedback has been consistently excellent for the precise fitment, quality of the stainless welds, and the purposeful twin outlet appearance.

Highlights

• Original BMW Performance rear silencer assembly for 2.0d N47 cars
• Manufacturer part number 18302185803
• Stainless steel build for corrosion resistance and longevity
• Twin 74 mm chrome tailpipe finishers for a clean factory performance look
• Lower restriction design for smoother exhaust flow
• Sportier tone that becomes more pronounced above 2,000 rpm with comfortable interior sound levels
• Factory-spec mounting points and clearances for a direct-fit install
• Direct swap for the OE oval rear box

What you receive

• Rear silencer with 2 polished chrome outlets
• Clamp and required mounting hardware

Vehicle application

• BMW 3 Series E92 320d N47 Coupe from Jun 2005 to Jun 2013
• BMW 3 Series E93 320d N47 Convertible from Sep 2007 to Oct 2013

Compatibility check before dispatch

We verify fitment prior to shipping. For UK vehicles, provide your registration number. For others, supply the last 7 characters of your VIN at checkout so we can confirm the part suits your car.

Professional fitting

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

Warranty

Two years manufacturer warranty for UK customers and one year for international customers when a VIN is provided on compatible vehicles.

Country of origin

Made in the UK.

Customer feedback

Owners report a deeper, sportier diesel soundtrack without drone, smoother flow, and an authentic factory-quality finish. The twin 74 mm chrome outlets complete the rear end with a subtle OEM plus look.

Part number: 18302185803

Photos

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