Eisenmann Rear Pipes without Resonator - E46 325i/330i/ci

Eisenmann has engineered the E46 325i/330i exhaust to use this center section as an option. The factory E46 center section uses two resonators to tone down the exhaust volume even more. By removing the 2nd resonator with a set of straight pipes, more exhaust volume can be heard. It's like turning the volume knob up a few clicks.

As with their mufflers, the Eisenmann center pipes are made from T304/T306 stainless steel. This is only the section to remove the rear resonator in front of the muffler. It requires cutting of the original center section and clamping this in place. Another Eisenmann part is available that covers the complete center section from the headers to the rear muffler. The slip-on design makes this an easy upgrade to the Eisenmann muffler at any time so you can try out the muffler first and if you desire more sound the center section can be added later.

With near-zero restriction in the piping a small power gain may come from this section, especially on turbo cars, but the real purpose is to increase sound levels. The Eisenmann pipes will also save some weight over the factory section.

This exhaust section is built to order and ships from Eisenmann's factory in Germany. Because of the COVID impact, delivery times have been as long as 10-12 weeks after ordering but could be shorter. For the latest ETA info please contact our sales team.

Notice of Regulatory Non-Compliance. This exhaust system has been developed to work in conjunction with all factory emissions controls and equipment. Installation of this exhaust will not increase emissions nor cause a check-engine light or fault codes on a properly maintained vehicle. However, neither BimmerWorld nor the manufacturer can assure compliance with local or state regulations regarding sound levels or other compliance with vehicle inspection or registration. It is the responsibility of the vehicle owner to ensure his/her vehicle complies with all federal, state, county, or local regulations. Some suppliers will not ship to certain states, requiring extra delivery time. We will advise you of any delays.