BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW F98 X4 M S58 3.0L

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Performance exhaust options from the best BMW aftermarket producers and the most reliable replacement maintenance parts are all at Turner Motorsport. Over time, factory exhaust on the cleanest examples of BMW heritage shows their age. Our factory replacement exhausts are just what you need to keep your favorite car in showroom condition or finish off your restoration. If you are looking for a bump in sound and power, you can also find our performance options like Headers, Downpipes, and Mufflers from Corsa, DINAN, and others on this page.

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AWE - Corporate Logo
T#:47164986
Part#: AWEF97SP
In Stock
Starting at $ 2,665.00 USD
Starting at $ 2,665.00 USD
The SwitchPath Catback Exhaust for the F97 X3 M from AWE offers a perfectly balanced and tuned exhaust that will deliver power when needed without droning at cruising speeds. By replacing the factory muffler, you will uncover the pure sound of the S58 engine. This exhaust is perfect for those who want a more aggressive response when getting on the throttle, but don't want to wake up the neighbors. The SwitchPath™ Technology utilizes factory valving and the M-Sport button to adjust tone on the fly. Crafted from 3-inch, U.S.-sourced T304L stainless steel, the system features a valved SwitchPath™ muffler that seamlessly retains factory valve behavior—no harnesses or extensions needed. Minimal bends. Maximum flow. Push-button transformation. The SwitchPath Axleback is engineered to begin at the factory cut point, making it compatible with the stock mid-section or any aftermarket mid-pipe that respects the OEM cut point. AWE's optional Non-Resonated Performance Mid Pipes can be included to create a full cat-back exhaust system. When paired with the SwitchPath™ Axleback, the result is a deep, smooth soundtrack with no trace of rasp. The Non-Resonated Performance Mid Pipes are engineered to begin right behind the factory secondary catalysts, and they’re compatible with both the factory axleback and any system that aligns with the OEM cut point.
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CTS - Corporate Logo
T#:4333554
Part#: EXHDP0043CAT
Ships in 7 Business Days
$ 749.99 USD
Free Shipping
$ 749.99 USD
Free Shipping
CTS Turbo High Flow-CATS are made to maximize exhaust flow for the highest power gains. Designed using the latest in CAD technology; this part is made to fit perfectly in place of the restrictive factory catalytic converter. Manufactured from CAST T304 stainless steel; hand TIG welded and back-purged to ensure years of reliable performance. In addition to unleashing the power and performance of your 3.0 Twin Turbo, CTS' High Flow-CATS will make your vehicle sound like it really should. When installed with factory exhaust, it produces a louder and deeper growl with a much more pronounced exhaust “crackle” on downshift. While up-shifting you will enjoy a confident “punch!” as you bang through all 8 gears. The sound will be even louder if you already have an aftermarket exhaust system. Product Details: Designed and tested on a real car in the real world Cast T304 stainless steel, TIG welded back-purged construction 200 Cell High Flow-CATS Great power upgrade with uncompromising performance Incredible sporty exhaust sound, subtle when cruising No drone with factory exhaust Fitment: 2019-2022 G01 BMW X3M 2019-2022 G01 BMW X3M Competition 2019-2022 G02 BMW X4M 2019-2022 G02 BMW X4M Competition To remove the CEL that will occur, proper stage 2 tuning software must be used.
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CTS - Corporate Logo
T#:51075069
Part#: EXH-TP-0026
Ships in 7 Business Days
New Item
$ 299.99 USD
Free Shipping
$ 299.99 USD
Free Shipping
This refined resonator delete kit for the F97 X3M and F98 X4M transforms the factory exhaust into a more aggressive, powerful note that perfectly suits the S58 engine. By replacing the restrictive, hydro-formed stock section with 70mm T304 stainless steel tubing, this upgrade significantly improves exhaust flow and provides a fuller, more assertive sound profile.
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