Exhaust› Exhaust Pipes, Systems and Components

Yonristic Performance

Yonristic Performance MaxFlow Heat-Shielded Catless Downpipes

$678.03

SKU: YR-2642-MER-FRE

In Stock
In Stock
Ships by Nov 14
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Yonristic Performance MaxFlow Heat-Shielded Downpipes are designed to replace the restrictive factory catalytic downpipes on the Mercedes AMG GT series, enhancing turbocharger efficiency and engine performance. By significantly reducing backpressure, these downpipes allow the M178 engine’s twin turbochargers to spool faster and operate more efficiently, resulting in improved throttle response, stronger mid-range torque, and increased horsepower. They are available in a catless free-flow version for maximum exhaust flow or a 200-cell high-flow catalytic version for a balance of performance and catalytic functionality. Both configurations feature heat-shield wrapped construction to manage intense engine heat and protect surrounding components.
Show original supplier description
The Yonristic Performance MaxFlow Heat-Shielded Downpipes are designed to replace the restrictive factory catalytic downpipes on the Mercedes AMG GT series, enhancing turbocharger efficiency and engine performance. By significantly reducing backpressure, these downpipes allow the M178 engine’s twin turbochargers to spool faster and operate more efficiently, resulting in improved throttle response, stronger mid-range torque, and increased horsepower. They are available in a catless free-flow version for maximum exhaust flow or a 200-cell high-flow catalytic version for a balance of performance and catalytic functionality. Both configurations feature heat-shield wrapped construction to manage intense engine heat and protect surrounding components.

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

BrandYonristic Performance
Part NumberYR-2642-MER-FRE
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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