Exhaust› Exhaust Pipes, Systems and Components

CTS

S58 Downpipes

$749.99

SKU: CTS-EXH-DP-0043

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The CTS Turbo BMW S58 downpipes are designed to maximize exhaust flow for increased power gains. They replace the restrictive factory catalytic converter and are constructed from CAST T304 stainless steel, with hand TIG welded and back-purged seams for durability.
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The CTS Turbo BMW S58 F97/G01 X3M/X3M Competition and F98/G02 X4M/X4M Competition Downpipes are engineered to optimize exhaust flow, delivering significant power gains. These downpipes are designed using CAD technology to ensure a perfect fit, replacing the restrictive factory catalytic converter. Constructed from CAST T304 stainless steel, these downpipes feature hand TIG welded and back-purged seams, ensuring years of reliable performance. Installation of these downpipes not only unleashes the power and performance of your 3.0 Twin Turbo engine but also enhances the vehicle's sound profile, producing a louder, deeper growl with more pronounced exhaust "crackle" on downshifts and a confident "punch!" on upshifts. Key product details include their design and testing on real-world vehicles, TIG welded back-purged construction from 304 stainless steel, and their direct replacement of the factory catalytic converter. They offer a great power upgrade with uncompromising performance, an incredible sporty exhaust sound that remains subtle when cruising, and no drone when paired with the factory exhaust system. Fitment is confirmed for 2019-2022 F97/G01 BMW X3M, 2019-2022 F97/G01 BMW X3M Competition, 2019-2022 F98/G02 BMW X4M, and 2019-2022 F98/G02 BMW X4M Competition models. Please note that to avoid a Check Engine Light (CEL), proper stage 2 tuning software must be used.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandCTS
Part NumberCTS-EXH-DP-0043
CategoryExhaust

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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