BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW 4 Series F32 (2014+)

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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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Eisenmann Performance Sport Exhaust - F3X 340/440
Eisenmann Performance Sport Exhaust - F3X 340/440
Modification of the Rear Bumper Required w/ 4x76mm tips
Eisenmann - Corporate Logo
T#:584790
Part#: B5455.00902KT
In Stock at Vendor
Starting at $ 1,895.00 USD
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Starting at $ 1,895.00 USD
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Maximize performance and style with massive weight savings
Eisenmann Performance Sport Exhaust System - F3X 328i / 428i
Eisenmann Performance Sport Exhaust System - F3X 328i / 428i ...
Modification of the Rear Bumper Required w/ 4x76mm tips
Eisenmann - Corporate Logo
T#:584816
Part#: B5428.00764KT
In Stock at Vendor
Starting at $ 1,968.99 USD
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Starting at $ 1,968.99 USD
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Maximize performance and style with massive weight savings
Eisenmann Race Exhaust - F3X 335/435
Eisenmann Race Exhaust - F3X 335/435
Modification of the Rear Bumper Required
Eisenmann - Corporate Logo
T#:584770
Part#: B5430.00903RKT
In Stock at Vendor
Starting at $ 2,932.99 USD
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Starting at $ 2,932.99 USD
Free Shipping
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Maximize Performance and Style with Massive Weight Savings
Eisenmann Performance Sport Exhaust - F3X 335/435
Eisenmann Performance Sport Exhaust - F3X 335/435
Modification of the Rear Bumper Required
Eisenmann - Corporate Logo
T#:584776
Part#: B5430.00903KT
In Stock at Vendor
Starting at $ 2,932.99 USD
Free Shipping
Add to Wish List
Starting at $ 2,932.99 USD
Free Shipping
Add to Wish List
Maximize performance and style with massive weight savings
Eisenmann Race Exhaust - F3X 340/440
Eisenmann Race Exhaust - F3X 340/440
Modification of the Rear Bumper Required w/ 4x76mm tips
Eisenmann - Corporate Logo
T#:584795
Part#: B5455.00902RKT
In Stock at Vendor
Starting at $ 1,895.00 USD
Free Shipping
Add to Wish List
Starting at $ 1,895.00 USD
Free Shipping
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Maximize performance and style with massive weight savings
Eisenmann Race Exhaust System - F3X 328i / 428i
Eisenmann Race Exhaust System - F3X 328i / 428i
Modification of the Rear Bumper Required w/ 4x76mm tips
Eisenmann - Corporate Logo
T#:584817
Part#: B5428.00764RKT
In Stock at Vendor
Starting at $ 3,199.99 USD
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Starting at $ 3,199.99 USD
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Maximize performance and style with massive weight savings
BMW Xforce Smartbox Varex Muffler ECU Upgrade Module
BMW Xforce Smartbox Varex Muffler ECU Upgrade Module
XForce - Corporate Logo
T#:28570834
Part#: VKSB01-ECU-MODUL
Ships in 1 Business Day
Sale - Save 10% $ 399.00

This product was last offered at the strikethrough price on
06-30-2026

$ 359.10 USD
Free Shipping on orders $49 and up
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Sale - Save 10%
$ 399.00

This product was last offered at the strikethrough price on
06-30-2026

$ 359.10 USD
Free Shipping on orders $49 and up
Add to Wish List
BMW Xforce Smartbox Varex Muffler ECU Upgrade Module is the ideal choice for BMW owners seeking to enhance their vehicle's performance. This innovative module seamlessly integrates with the Varex muffler system, allowing for precise control over exhaust sound and performance. With its easy installation process and versatile functionality, it provides an elevated driving experience for BMW enthusiasts.
  • Seamless integration with Varex muffler system
  • Precise control over exhaust sound and performance
  • Easy installation process
  • Versatile functionality for enhanced driving experience
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