Exhaust› Catalytic Converters

CTS Turbo

High-Flow Cat Downpipe

$612.00

SKU: CTS-EXH-DP-0024-S

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 High-Flow Cat is a downpipe designed to maximize exhaust flow and increase power gains for the 2020+ Toyota Supra B58. It replaces the restrictive factory downpipe with a high-flow 200-cell catalytic converter. The unit is constructed from T304 stainless steel with TIG welded, back-purged construction for durability.
Show original supplier description
The CTS Turbo High-Flow Cat is engineered to maximize exhaust flow and deliver significant power gains for the 2020+ Toyota Supra B58 engine. This performance downpipe replaces the restrictive factory unit, incorporating a high-flow 200-cell catalytic converter to enhance performance and sound. Constructed from premium T304 stainless steel, this downpipe features hand TIG welding and back-purging to ensure a robust and long-lasting component capable of withstanding demanding conditions. The design utilizes the latest CAD technology for a perfect fitment, reducing down to 3.15 inches (80mm) for seamless integration with factory or aftermarket exhaust systems. This high-flow catalytic converter offers an excellent power upgrade with uncompromising performance and an incredible sporty exhaust sound that remains subtle during cruising, with no drone when paired with the factory exhaust. For proper installation, it is recommended to replace the downpipe gasket; the factory BMW gasket (18328612538) is required and not included. To avoid a check engine light, Stage 2 software is required. This downpipe is compatible only with cars that do not have a GPF/OPF (Gasoline Particulate Filter/Otto Particulate Filter). It is sold for competition use and is not legal for use in highway or street vehicles. Catalytic converters damaged by “crackle tune” are not covered under warranty.

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-0024-S
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.

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