BMW Exhaust Center Sections

Unlock the true potential of your B58 while retaining the functionality of the factory valved rear muffler. The ECS Tuning Center Muffler Delete replaces the restrictive OEM midsection with high-flow, TIG-welded 304 stainless steel tubing, improving both exhaust flow and acoustic character.

This direct-fit upgrade removes the factory resonator and center muffler, reducing system weight by approximately 8 lbs and eliminating built-in restrictions that limit performance. The result is a deeper, more aggressive exhaust tone with enhanced burbles, delivered without unwanted drone.

Design:

1.25mm wall brushed 304 stainless steel tubing, TIG-welded for durability
Single 80mm pipe with factory style mounting bracket and downpipe flange
~8 lbs lighter than stock by eliminating the bulky resonator and muffler
Bolts to the factory downpipe and valved muffler using OEM-style clamps
Slip joints and 304 stainless Accuseal clamps allow fine alignment
Uses OEM hanger locations and attaches at designated cut points for ease of install and potential reversibility
Routes around OEM chassis braces with proper spacing
Kit Contents:

Front exhaust section
Mid-pipe exhaust section
OEM-style downpipe clamp
Rear sleeve clamp
Engineered for enthusiasts who want more sound, less restriction, and uncompromising fitment, this resonator delete delivers a refined yet aggressive exhaust character while allowing your B58 to breathe more freely.

Installation and Support:

Installation is as easy as cutting, placing into position, and clamping! - Click HERE for Installation Instructions -
Tools you might want for the job:
Exhaust pipe cutter - T38545
Product Development:

The ECS 40 Resonator delete was designed, engineered, tested, and quality inspected by ECS Tuning's Research and Development team. Their process incorporates industry-leading tools and methods, including FARO laser scanning for reverse engineering and quality assurance, SolidWorks 3D CAD modeling, in-house 3D printing for rapid prototyping, and rigorous long-term product testing. Performance data is validated using both a Mustang AWD 500 SE in-ground dyno and a Superflow SF-750 Flowbench to ensure precision and reliability.