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Dinan Freeflow Axleback Exhaust System | BMW 440i (17-20) (D660-0077-BLK)

Dinan Freeflow Axleback Exhaust System | BMW 440i (17-20) (D660-0077-BLK)

D660-0077-BLK

Out of stock

$1,649.95 USD
$1,856.95 USD $1,649.95 USD
ADDITIONAL DISCOUNTS APPLIED AT CHECKOUT Sold out

The Dinan 17-20 BMW 440i Freeflow Axleback Exhaust System is a high-performance upgrade designed to enhance exhaust flow and overall engine efficiency. Constructed with durable materials and featuring a freeflow design, this system reduces back pressure to increase power output and improve throttle response. It delivers a sporty, aggressive exhaust tone that remains civilized during normal driving, while providing a more intoxicating burble and pops under hard acceleration. The incorporation of a Helmholtz chamber design effectively minimizes resonance or drone at low RPM, ensuring a refined sound profile for daily driving and spirited runs alike.

This axleback exhaust system is specifically engineered for 2017 to 2020 BMW 440i models with F33 and F36 chassis, equipped with the N55 engine. It is a direct bolt-on replacement for the factory exhaust, offering an easy installation process. Suitable for street and performance use, this system enhances both sound and performance without requiring extensive modifications. The kit includes the necessary components for a straightforward upgrade, making it an ideal choice for enthusiasts seeking a balance of sporty sound and improved exhaust efficiency.

Overview

Dinan Exhaust

Fits 2017–2020 BMW 440i F33/F36

Part #: D660-0077-BLK

Overview

The Dinan Freeflow Axleback Exhaust System for the BMW 440i is a high-performance upgrade designed to enhance your vehicle’s exhaust flow and sound profile. Crafted specifically for the F33 and F36 models from 2017 to 2020, this system is ideal for enthusiasts seeking a combination of sporty acoustics and refined driving comfort. By reducing back pressure, it supports increased power output and improved throttle response, making your driving experience more engaging. The system’s design ensures a civilized tone during everyday driving while delivering an aggressive, burbling exhaust note under hard acceleration, adding excitement and character to your BMW. Incorporating a Helmholtz chamber, this exhaust minimizes low RPM resonance or drone, providing a more comfortable cabin environment without sacrificing performance or sound quality.

Key Features

This exhaust system features a thoughtfully engineered design focused on performance and sound quality. Key features include:
  • Constructed with durable, high-quality materials for long-lasting performance
  • Designed to reduce exhaust back pressure for increased power and response
  • Features a Helmholtz chamber to minimize drone at low RPMs
  • Produces a sporty, aggressive exhaust tone with enhanced burbles and pops
  • Optimized for a balanced blend of civilized sound and spirited driving
  • Easy bolt-on installation for a direct fit on compatible BMW 440i models

Construction & Design

The Dinan Freeflow Axleback Exhaust System is built with precision craftsmanship, utilizing high-grade stainless steel components that resist corrosion and withstand high temperatures. The system’s design emphasizes optimal exhaust flow, with carefully tuned chambering to achieve the desired sound characteristics while maintaining durability and reliability over time.

Driving Feel & Feedback

This exhaust upgrade not only enhances the auditory experience but also supports improved exhaust flow, which can contribute to better throttle response and a more dynamic driving feel. The refined tone and reduced drone at low RPMs ensure a comfortable yet exhilarating driving experience, whether cruising or accelerating hard.

Installation & Fitment

Designed for straightforward installation, the Dinan Freeflow Axleback Exhaust System is a direct bolt-on upgrade for 2017–2020 BMW 440i F33 and F36 models. No additional modifications are typically required, making it a convenient upgrade for enthusiasts looking to elevate their vehicle’s performance and sound profile.
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