XForce BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW 2 Series F23 (2015+)

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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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XForce Varex Catback Exhaust System - F22/F23 M235i
XForce Varex Catback Exhaust System - F22/F23 M235i
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
XForce - Corporate Logo
T#:21702999
Part#: ESBM235VKCS
Ships in 1 Business Day
Sale - Save 10% $ 1,899.00

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

$ 1,709.10 USD
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Sale - Save 10%
$ 1,899.00

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

$ 1,709.10 USD
Add to Wish List
With the new Varex cat back system, get ready to let your engine roar like it should while offering the ability to take it back a notch when you need the sophistication that you come to expect from a BMW. This latest cat-back is constructed from 304 stainless steel with a brushed finish and fits seamlessly to the factory slip joint after the downpipe flowing through to twin 2.5” and into single 3' to provide maximum performance while offering optimal ground clearance. XForce's patented Varex Valved muffler with vehicle-specific internal design adds a high-quality performance sound when in the open position whilst delivering quiet when you need it. To finish things off, the 3.5” double wall polished tips compliment the rear of the vehicle perfectly. Features: Twin 2.5” VAREX VALVED Cat-Back System Single 3' VAREX™ Muffler Dual Polished Double Wall 4' Tips Mandrel Bent 304 Stainless Steel Twin 2.5' Tailpipes Fits seamlessly to the factory OEM BMW mounting points.
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BMW Xforce Smartbox Varex Muffler ECU Upgrade Module
BMW Xforce Smartbox Varex Muffler ECU Upgrade Module
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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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