Sale

Exhaust› Exhaust Pipes, Systems and Components

CTS Turbo

3" High-Flow Catted Downpipe for BMW S55

$599.99 $539.99 Save $60.00

SKU: EXH-DP-0025

In Stock
In Stock
Ships by Sep 13
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The CTS Turbo downpipe is a 3" high-flow catted downpipe designed for BMW S55 engines. It is constructed from durable 304 food-grade stainless steel and features laser-cut flanges for precise fitment. The design utilizes the latest 3D scanning technology and CAD software for optimized exhaust gas flow and integration with factory or aftermarket mid-pipes.
Show original supplier description
The CTS Turbo 3" High-Flow Catted Downpipe is engineered to enhance the performance of BMW F80/F82 M3/M4 and F87 M2 Competition models equipped with the S55 engine. Constructed from durable 304 food-grade stainless steel, this downpipe features a large 3" diameter designed to streamline exhaust gas flow for improved performance. Utilizing the latest 3D scanning technology and CAD software, CTS Turbo has meticulously designed this downpipe for optimal flow routing and seamless integration. It boasts factory-like placement for O2 sensors, ensuring proper functionality. The laser-cut flanges contribute to a perfect fit with both factory and aftermarket mid-pipes, simplifying installation. It also contributes to faster spool, better transient boost response, and a more aggressive exhaust note, making the S55 engine scream. An installation guide is available for download. Fitment is confirmed for 2015+ BMW S55 M3 (North America), 2015+ BMW S55 M4 (North America), and 2018+ BMW S55 M2C (North America). Vehicles include the BMW 3 Series F80 M3 (2015-2018) and BMW 4 Series F82/F83 M4 (2015-2020), both with the S55 3.0L engine.

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

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandCTS Turbo
Part NumberEXH-DP-0025
CategoryExhaust

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

Buy with Confidence

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.

View Full Return Policy

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.

View Full Shipping Policy