BMW
Genuine BMW M Performance Exhaust Rear Silencer/Muffler for M3 E90 Saloon/Sedan 20072011 | Inconel, 4x74mm Polished Titanium Quad Tailpipes | OEM V8 Back Box | PN 18302184198
Genuine BMW M Performance Exhaust Rear Silencer/Muffler for M3 E90 Saloon/Sedan 20072011 | Inconel, 4x74mm Polished Titanium Quad Tailpipes | OEM V8 Back Box | PN 18302184198
Heads-up on cancellations & returns: if you cancel an order or return an item, you won't get back 100% of what you paid. We apply a 10% restocking fee, the outbound shipping is non-refundable, and we have to pass on Shopify / PayPal payment processing fees; these aren't returned to us when we refund you. International orders also lose on exchange-rate spread in both directions. If the original packaging is damaged or missing, a reboxing charge applies. For international orders specifically, if you refuse to pay our shipping invoice or supply a prepaid label after placing the order, the same deductions apply. We're upfront about this — please be sure of your purchase before ordering.
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BMW M Performance Rear Box for E90 M3 Saloon – Inconel with Titanium Quad Outlets
Transform the character of your E90 M3 Saloon with the factory-engineered M Performance rear section built from high-alloy Inconel. This lightweight tail section unlocks a richer S65 V8 soundtrack and delivers a meaningful weight saving, while keeping long-distance refinement and zero unwanted drone. Finished with four 74 mm polished titanium outlets complete with the subtle M logo, it looks as good as it sounds and fits like genuine BMW kit should.
We have installed this rear box many times at MJ Modifications, and customer feedback is consistently positive. Expect crisper throttle response, a deeper note at idle and a more engaging tone under load, all without sacrificing comfort. If you want an OEM-quality sound upgrade that is lighter, more durable and beautifully made, this is the one.
Why this rear section stands out
- Inconel construction for outstanding heat resistance and longevity in demanding road or track use
- Approximately 9 kg lighter than the standard rear box, over 40 percent weight reduction at the tail
- Four 74 mm polished titanium finishers with discreet M branding
- Optimised internal flow to ease back pressure and sharpen engine response
- Perforated inner tubes for a premium motorsport aesthetic
- Developed to BMW’s OEM tolerances using advanced simulation for a precise, hassle-free fit
- Retains everyday civility with a purposeful V8 tone when you want it
What you receive
- Rear silencer assembly with riveted titanium quad outlets
- Two intermediate link pipes for straightforward installation
- Clamping sleeves and required mounting hardware
Vehicle suitability
- BMW M3 E90 Saloon, Jan 2007 to Oct 2011
Part number
18302184198
Professional fitting
For expert installation, choose MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a fitting quote and availability.
Compatibility check before dispatch
We verify fitment prior to shipping. Please provide your UK registration or the last 7 digits of your VIN at checkout so we can confirm suitability for your car.
Manufactured by
BMW – Genuine BMW Performance Parts
Warranty
Two-year manufacturer warranty for UK customers and one-year manufacturer warranty for international customers when a VIN is supplied at checkout on compatible vehicles.
Search-friendly terms
E90 M3 rear box, S65 V8 sound upgrade, BMW Motorsport rear silencer, M Performance tail section for E90 sedan, quad 74 mm titanium tips, lightweight Inconel backbox, genuine BMW accessory muffler, OEM M3 V8 rear section, factory-finish titanium outlets, E90 M3 saloon rear muffler, performance tailpipes for M3 E90, 18302184198.
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