While BMW’s S58 is a vast improvement over the S55 in the sound department, there is still much room for improvement. Most of the restriction comes from the factory G8X center pipes, as they house not only a pair of secondary cats but also a pair of very large resonators. You read that correctly; not 1 but 2 large resonators accompany a pair of secondary cats. When compared to the resonated Eisenmann center pipe set, the factory center pipes are 10 lbs heavier.
Eisenmann center pipes are designed to work with the Eisenmann Performance Exhaust for the BMW G8X M3 and M4 but will also install with the factory rear section. Available in either resonated or non-resonated versions, the center pipe set allows for bolt-on installation of the Eisenmann G8X Performance rear exhaust, converting the Eisenmann rear system from a slip-on style more familiar to European enthusiasts to a full bolt-on system that U.S. enthusiasts demand.
On the other hand, if you’re willing to essentially convert your factory rear muffler to a “slip-on” style, the non-resonated center pipes have the added benefit of including an x-pipe in place of the resonator to further tune the exhaust gases and pair well with the stock system, transforming your stock muffler into a much more aggressive sound for minimal cost and will save a chunk of weight as well.
EMISSIONS NOTICE
| * Select Center Pipe Style | Non Resonated (B5470.00000), Resonated (B5470.00001) |
|---|
Fast Shipping and Professional Packing
Through our long-term relationship in a long-standing partnership with UPS, FedEx, DHL and many other top global carriers we can provide a variety of shipping options. Our warehouse employees will pack every item to our exacting specifications. The goods you send us are checked thoroughly and secured properly prior to shipping. Everyday we deliver thousands of packages to customers across many countries. The fact that we're committed to becoming the biggest online retailer in the world is clear. Both Europe as well as the USA have warehouses and distribution centres.
Orders that contain more than one item are assigned processing times in accordance with the item.
We will inspect each and every one of the items ordered before shipping. Today, most orders will be shipped within 48 hours. The delivery time should be between 3-7 days.
Returns
The stock market is always changing. It's not entirely managed by us, since we have multiple organizations, such as the factory and our storage. Stock levels can fluctuate at any given time. Please understand it may happen that your order will be out of stock after the order is placed.
The policy is for 30 days. If you have passed 30 days in the past since you purchased, unfortunately we can't offer you a refund or exchange.
To be eligible for a refund, your item must be in good condition and in the same state that you received it. The item must be in the original packaging.
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