Exhaust› Catalytic Converters

RENNtech

Performance Downpipes w/ 200-Cell Sport Catalytic Converters

$4,880.00

SKU: 49.157.0863

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The RENNtech downpipes are performance exhaust components with 200-cell sport catalytic converters. Constructed from high-strength 304 stainless steel, these downpipes ensure lasting quality and a consistent tone.
Show original supplier description
The RENNtech Stainless Steel Downpipes are engineered to replace the restrictive stock exhaust system on W212 E 63 AMG and C218 CLS 63 AMG models. These performance downpipes feature high-flow, 200-cell sport catalytic converters designed to improve performance, reduce back pressure, and enhance exhaust volume and sound. Constructed from high-strength 304 stainless steel, these downpipes ensure lasting quality and a rich, consistent sound. When combined with RENNTECH's ECU software, these downpipes are stated to create an incredible sound with matching performance. The product claims gains of +10 HP and +15 LB-FT. Fitment includes multiple variations of the 212 - E 63 AMG (Pre-FaceLift up to MY 2013 / non 4-MATIC; FaceLift MY 2014 up / 4-MATIC; FaceLift MY 2014 up / non 4-MATIC) and the 218 - CLS 63 AMG (Pre-FaceLift up to MY 2014 / non 4-MATIC; FaceLift MY 2015 up / 4-MATIC; FaceLift MY 2015 up / non 4-MATIC).

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

BrandRENNtech
Part Number49.157.0863
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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