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Let's be honest—what's the point of owning a B58-equipped BMW if you can't hear it? The M340i and M440i both feature a bulky, suitcase-style rear muffler assembly that silences a wonderful exhaust note that the B58 was born to deliver. While full cat-back exhaust systems can be a serious investment, Turner Motorsport’s new muffler delete design offers an affordable alternative that delivers all the sound, style, and performance your B58 deserves.
This system completely transforms your BMW's character by replacing the restrictive rear muffler assembly with a high-flow, TIG-welded stainless steel setup that enhances tone, reduces weight, and maintains factory fitment and finish. The Turner Motorsport Muffler Delete features 3" primary tubing that transitions to dual 2.5" adjustable tip sections for a clean yet aggressive look. Accuseal-style slip-fit joints allow for easy adjustment and perfect tip placement inside the factory rear diffuser. Quad 2.5" tailpipes offer compatibility with your choice of Turner Motorsport exhaust tips.
FEATURES
KIT CONTENTS
INSTALLATION & SUPPORT
Looking for installation tips? Look no further! Turner's R&D team has assembled a start-to-finish installation guide to ensure an effortless install process. Click the "INSTALLATION" tab above to view their Installation Instructions.
Not for sale or use in the state of California on any pollution-controlled vehicle as per the California Air Resources Board.
Cross Reference
Eurosport Performance does not have live inventory. Although we aim shipping out not stocked products within 5 business days, supply constraints, import proceedures and product availability can cause additionnal delays. Please refer to the table below for more accurate details.
In stock - We have the item in stock at our warehouse and you can expect fulfillment within 24 hours.
Usually ships within 5-7 business days - We must import this product from our supplier or the manufacturer. Standard import proceedures take between 5-7 business days and you can expect fulfillment within 8 business days.
Back ordered - This product is out of stock at our warehouse with units in transit from our supplier. Fulfillment can vary.
If you wish to have a more accurate ETA, please send us a message at info@es-performance.com and we will respond within 24-48h.
12 Months
All products sold by Eurosport Performance are warrantied against manufacturing defects according to the manufacturer's warranty policy*. Warranty does not cover abuse, misuse, damages caused from improper manipulation, normal wear and tear, improper installation, or damages resulting from racing. Warranties only apply to the original owner. If a product is found defective, the customer will receive, at the discretion of Eurosport Performance, a replacement part at no extra cost.
* Conditions may apply. Please visit our Refund Policy or contact us at info@es-performance.com
