aFe MACH Force XP Axle-Back Stainless Steel Exhaust System

2016–2017 BMW 340i / 340ix / 440i / 440ix

Part #: 49-36335-B

Overview

The aFe MACH Force XP Axle-Back Exhaust System is designed to enhance the performance and sound of your BMW 340i, 340ix, 440i, or 440ix from 2016 to 2017. Crafted for enthusiasts who seek a combination of aggressive tone, improved exhaust flow, and a stylish appearance, this system is a direct bolt-on upgrade that elevates your driving experience. Whether you're looking to add a sporty sound or support increased horsepower and torque, this exhaust system delivers on both fronts.

Constructed from high-quality stainless steel, the MACH Force XP system ensures durability and resistance to corrosion, making it suitable for daily driving and spirited outings alike. Its mandrel-bent tubing and TIG-welded construction guarantee precise fitment and optimal flow, helping your vehicle breathe better and perform at its best. The inclusion of a factory-style exhaust valve allows for variable sound levels and flow control, giving you the flexibility to enjoy a quieter ride or unleash a more aggressive exhaust note when desired.

Key Features

The MACH Force XP Axle-Back Exhaust System incorporates several advanced features designed to maximize performance and style:

• Constructed from 100% hand TIG-welded stainless steel for superior strength, durability, and corrosion resistance.
• Mandrel-bent 3" inlet pipe transitioning to 2-1/2" piping, optimized for smooth exhaust flow and reduced backpressure.
• Factory-style exhaust valve, which uses the factory exhaust valve motor (not included), to regulate exhaust gases for maximum performance and sound control.
• Black tip finish adds a sleek, aggressive look to your vehicle's rear end, complementing the sporty aesthetic.
• Designed for easy, bolt-on installation with no cutting or welding required, making it accessible for DIY enthusiasts and professional installers alike.
• Includes all necessary hardware and clamps for a secure fit and leak-free operation.
• Supports an estimated +14 HP and +13 lbs. x ft. torque max gains, helping your BMW achieve better throttle response and overall power output.
• Enhanced exhaust tone that provides a deeper, more aggressive sound compared to the stock system, without excessive drone or noise.

Construction & Design

The aFe MACH Force XP Axle-Back Exhaust System is meticulously engineered using premium stainless steel, ensuring longevity and resistance to the elements. The mandrel-bent tubing maintains consistent diameter throughout the system, minimizing turbulence and maximizing exhaust flow. TIG welding provides precise, clean joints that enhance durability and aesthetic appeal. The inclusion of a factory-style exhaust valve allows for variable sound and flow control, giving you the ability to switch between a refined tone and an aggressive roar at the push of a button or throttle input.

The black tip finish not only adds a bold visual accent but also withstands high temperatures and corrosion, maintaining its appearance over time. Overall, the design focuses on performance, durability, and style, making it a perfect upgrade for enthusiasts who want to improve their vehicle's exhaust note and efficiency without sacrificing reliability.

Installation & Fitment

The aFe MACH Force XP Axle-Back Exhaust System is designed for a straightforward, bolt-on installation. It mounts directly to the factory exhaust outlets using included clamps and hardware, with no cutting, welding, or modifications required. The system is compatible with the original exhaust valve motor (not included), allowing you to retain factory controls and functionality. Installation typically takes a few hours and can be performed with basic hand tools. Once installed, you'll enjoy an improved exhaust note and performance boost without the need for tuning or additional modifications.

What's Included

• Stainless steel axle-back exhaust system with black tips
• All necessary clamps and hardware for installation
• Detailed installation instructions

Ideal For

• BMW owners seeking a performance upgrade with a sporty sound
• Enthusiasts wanting to support increased horsepower and torque
• Drivers looking for a durable, corrosion-resistant exhaust system
• Those who appreciate a stylish black tip finish and factory-style valve integration