Fabspeed Axle-Back Exhaust for BMW 335i 435i (F30/F32) N55 – Muffler Delete/Bypass, Back Box/Silencer Delete Rear Section, T304L Stainless Dual Tips – 3 Series 4 Series F3X 2012+

Fabspeed F30 F32 N55 Back Box Delete - Axle Back Stainless Rear Section

Give your turbo straight-six the voice it deserves. This Fabspeed rear section replaces the factory back box on the BMW F30 335i and F32 435i to unleash a race-bred soundtrack, sharper throttle response feel and head-turning presence. Expect a rich, higher-volume tone with addictive burbles on overrun and a noticeable weight drop at the tail of the car.

Built from 14 to 16 gauge T304L stainless steel with 3 inch to 2.5 inch pipework and finished with Deluxe Dual Style tailpipes, this axle back setup delivers serious sound while maintaining refined quality. We have installed and run this system ourselves and our customers love the fit, finish and grin-inducing note.

Highlights

• Designed for BMW F30 335i and F32 435i with the N55 engine
• Back box bypass - straight-through rear section for maximum tone and presence
• Approximate weight saving of 14 lb from the rear of the vehicle
• 14 to 16 gauge T304L stainless steel construction - 3 inch to 2.5 inch transitions
• Deluxe Dual Style Tips - choose your finish:
  • 3 inch Polished
  • 3 inch Satin Black
  • 3.5 inch Carbon Fibre
• Direct bolt-on axle back section - no cutting of the mid-pipe required
• Backed by the Fabspeed Lifetime Warranty
• Delivers a raw, motorsport-inspired soundtrack with burbles on overrun

Fitment

• BMW 3 Series F30 335i - 2012 onwards
• BMW 4 Series F32 435i - 2013 onwards
• Engine code: N55

Part numbers and finishes

• FS.BMW.F3X.MBEABB - Satin Black Tip Finish
• FS.BMW.F3X.MBEABCF - Carbon Fibre Tip Finish
• FS.BMW.F3X.MBEABP - Polished Stainless Tip Finish

Why enthusiasts choose this setup

• Authentic straight-six turbo soundtrack without the stock rear silencer
• Quality materials that resist corrosion and keep their appearance
• Clean fitment, smart tip choices and a purposeful look
• Weight trimmed from the rear for better balance

Compatibility check

We verify fitment before dispatch. Add your UK registration number or the last 7 of your VIN at checkout so we can confirm the correct application for your vehicle.

Installation

Professional fitting recommended. For supply and installation, book with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Manufactured by

Fabspeed

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