TUNERBITS Black Chrome Carbon Tip Axle-Back Exhaust — F30 335i / F32 435i

Name: TUNERBITS Black Chrome Carbon Tip Axle-Back Exhaust — F30 335i / F32 435i
Brand: TUNERBITS
SKU: AB-BF3013-GB
Price: 239.99 USD
Availability: InStock

by TUNERBITS

F30 F32

$239.99

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Key Features

Stainless steel construction with black chrome finish resists corrosion and oxidation long-term.
4.25" OD carbon-wrapped tips with inner 3.75" steel cores for structural rigidity.
3" ID inlet piping connects directly to your factory mid-pipe without modification.
Fitment confirmed for RWD F30 335i (2012–2015) and F32 435i (2014–2016) only.
Requires a single clean cut of the stock exhaust at the factory break point.
Axle-back design delivers audible and visual upgrade without disturbing the mid-pipe or tune.

Product Details

Brand: TUNERBITS
Part #: AB-BF3013-GB
Category: Axle-Back Exhaust Systems
ASIN: B08V376X7C

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TUNERBITS Black Chrome Carbon Tip Axle-Back Exhaust — F30 335i / F32 435i — Overview

The TUNERBITS Axle-Back Exhaust gives your F30 335i or F32 435i a blacked-out, purposeful look that the factory system simply cannot match. Built entirely from stainless steel with a black chrome outer finish, this system is engineered to hold up against heat cycles, road salt, and moisture without the rust or discoloration that plagues cheaper mild-steel alternatives. The result is a system that looks as aggressive on day 500 as it does on day one.

The standout visual element is the dual 4.25" carbon-wrapped tip set, each housing a structural 3.75" inner steel tip that keeps the carbon sleeve seated and protected under heat. The 3" ID inlet piping mates cleanly to your existing mid-pipe, while the 2.25" ID outlet maintains smooth exhaust flow through to the tips. There are no adapters or reducers needed on a proper RWD fitment — it connects the way a well-engineered system should.

Installation is a straightforward weekend job for anyone comfortable with basic hand tools, but it does require one important step: a clean cut of the factory exhaust near the OEM break point before the new system bolts into place. This is a one-way modification, so measure twice. Once that cut is made, the TUNERBITS system drops in with no cutting, welding, or fabrication beyond that single prep step.

This system is confirmed for rear-wheel-drive models only — the F30 335i from 2012 through 2015 and the F32 435i from 2014 through 2016. xDrive owners will need to look at a different fitment. For RWD drivers who want an immediate upgrade in sound and appearance without touching the turbo, downpipe, or ECU, this axle-back is one of the cleanest, most cost-effective entry points into the aftermarket exhaust segment for the N55-powered chassis.