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Borla 12-15 BMW 328i Sedan 2.0L AT/MT RWD Dual Left Rear Exit Catback Exhaust - Borla 140509
Borla 12-15 BMW 328i Sedan 2.0L AT/MT RWD Dual Left Rear Exit Catback Exhaust - Borla 140509
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Borla 12-15 BMW 328i Sedan 2.0L AT/MT RWD Dual Left Rear Exit Catback Exhaust

Borla
BOR140509
808422405096
Catback
7 Units In Stock
$ 1,483.99 $ 1,324.99
FREE Ground Shipping!
$ 1,324.99

This Borla cat-back exhaust system is built for the verified 2012-2016 BMW 328i Base application listed below. Select it by exact manufacturer part number 140509 and confirm the full engine, drivetrain, body, wheelbase, factory-exhaust, and Borla application notes before ordering.

Key Features

  • T-304 Stainless Steel Construction: Premium austenitic material outperforms T-400 series for lasting durability and corrosion resistance in all conditions.
  • 2.75-inch Mandrel-Bent Tubing: Ultra-smooth bends promote maximum exhaust flow for power gains and reduced backpressure.
  • Product weight: 38 lbs; ships in box measuring 48 x 16 x 16 inches.
  • Straight-Through Multi-Core Muffler: Patented technology increases exhaust velocity for noticeable horsepower, torque, and the distinctive Borla exhaust tone.
  • Polished T-304 Stainless Tips (3.14-inch Diameter): Dual left rear exit design adds aggressive styling with a mirror-like finish that resists pitting.
  • Bolt-on design with precision CNC-mandrel bends for direct fit without cutting or welding.

Fitment

Years Make Model Application
2012-2016 BMW 328i Base
2016 BMW 428i Base

Specifications

Manufacturer Borla
Manufacturer Part Number 140509
Product Type Catback
Position Rear
Fitment Type Vehicle specific, verify the complete application

What's Included

One new Borla product identified by manufacturer part number 140509. Clamps, hangers, gaskets, tips, pipes, tools, and companion parts are included only when expressly listed for this exact part number.

About Borla

Borla develops stainless-steel exhaust systems, mufflers, tips, pipes, and related components for vehicle-specific and universal performance applications. Product selection remains exact-application and exact-part-number specific.

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Frequently Asked Questions

Will this Borla part fit my 2012-2016 BMW 328i Base?
That application is listed, but confirm the engine, drivetrain, body or cab style, wheelbase, factory exhaust layout, tip opening, and every Borla application note before ordering.

Will this change require an engine tune?
A cat-back, axle-back, tip, muffler, or post-catalyst component usually does not require tuning, but confirm the exact application, emissions configuration, oxygen-sensor locations, and local requirements before installation.

What should I inspect before installation?
Check the shipping carton and components against the exact part number, then inspect clamps, hangers, gaskets, mating flanges, clearances, tip alignment, and required reused factory hardware before removing the original exhaust.

Installation Instructions

Follow the current Borla instructions and vehicle service information for this exact part number. Let the exhaust cool, support the vehicle safely, compare all parts before removal, protect sensors and wiring, use the specified clamps and torque values, align all joints and tips without preload, confirm body and suspension clearance, check for leaks, and retorque after the first heat cycles. Professional installation is recommended.

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