Exhaust› Catalytic Converters

CTS Turbo

3" Stainless Steel High-Flow CAT Downpipe

$599.99

SKU: CTS-EXH-DP-0025-CAT

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Special Order
Ships in 4–6 weeks
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$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The CTS Turbo 3" Stainless Steel High-Flow CAT Downpipe is a performance exhaust component designed for BMW S55 engines. Constructed from durable 304 food-grade stainless steel with laser-cut flanges, it features a 3" diameter piping for improved exhaust flow. The downpipe includes factory-like O2 sensor placement for seamless integration.
Show original supplier description
The CTS Turbo 3" Stainless Steel High-Flow CAT Downpipe is engineered to enhance the performance of BMW S55-powered vehicles, including the F80 M3, F82 M4, and F87 M2 Competition models (North America, 2015+ for M3/M4, 2018+ for M2C). Crafted from robust 304 food-grade stainless steel with precise laser-cut flanges, this 3-inch diameter downpipe is designed to streamline exhaust gas flow, allowing for faster turbo spool, improved transient boost response, and increased overall boost. The system is designed for a perfect fit with factory or aftermarket mid-pipes and includes factory-like O2 sensor placement. Significant performance gains, particularly in torque, can be expected when paired with appropriate tuning software, such as Bootmod3. It is strongly recommended to use Stage 2 software to avoid a check engine light. Please note that this product is not for sale or use in the state of California on any pollution-controlled vehicle as per the California Air Resources Board regulations.

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 Turbo
Part NumberCTS-EXH-DP-0025-CAT
CategoryExhaust
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Returns & Fitment

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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.

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