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RennTech M177 downpipes for the C 63 and GLC 63 from the front - Downpipes for the 2015-2023 C 63 / C 63 S AMG

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C 63 and GLC 63 downpipes standing upright - Downpipes for the 2015-2023 C 63 / C 63 S AMG

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C 63 and GLC 63 downpipes with catalysts from above - Downpipes for the 2015-2023 C 63 / C 63 S AMG

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C 63 downpipe inlet section from the side - Downpipes for the 2015-2023 C 63 / C 63 S AMG

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Downpipe catalyst face close up - Downpipes for the 2015-2023 C 63 / C 63 S AMG

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RennTech Downpipes 2015-2023 Mercedes-AMG C 63 / S W205 C205 X253 C253

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Brand: RennTechSKU / Part #: 49.177.0373

Regular price: $4,830.60
Regular price: ~~$4,980.00~~
Sale price: $4,830.60
Unit price: per

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Subtotal: $4,830.60

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RennTech Downpipes 2015-2023 Mercedes-AMG C 63 / S W205 C205 X253 C253

Subtotal: $4,830.60

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Overview

RennTech's downpipe for the 2015-2023 C 63 / C 63 S AMG replaces the restrictive factory part with a free-flowing design and a 200-cell sport catalytic converter, cutting back pressure behind the turbo for quicker spool and more power.

Key details

Made to bolt to the factory C 63 and GLC 63 exhaust and to RennTech's own sport muffler system, with all hardware and clamps. Not for use on US public roads.

Watch it explained

Features

Free-flowing downpipe design
200-cell sport catalytic converter
Less back pressure behind the turbo

Specs

Part number	49.177.0373
Engine	4.0L M177 twin-turbo V8
Shipping weight	37 lb

Fitment notes

Fitment is as listed by RennTech for this part number.

Fitment

Make	Model	Chassis	Year	Engine
Mercedes-Benz	C 63 / C 63 S AMG	W205 / C205	2015-2023	4.0L M177 twin-turbo V8
Mercedes-Benz	GLC 63 / GLC 63 S AMG	X253 / C253	2018-2023	4.0L M177 twin-turbo V8

Fitment

Year	Make	Model
2015–2023	Mercedes-Benz	C63 AMG
2015–2023	Mercedes-Benz	C63 AMG S
2018–2023	Mercedes-Benz	GLC63 AMG
2018–2023	Mercedes-Benz	GLC63 AMG S

Not sure? Text us your VIN and we’ll confirm.

Shipping & returns

Shipping: Orders ship via UPS, FedEx or USPS, from our facility near Los Angeles or directly from the manufacturer. Rates for many items are weight-based and shown at checkout. If you need it by a certain date, text us before you order.

Returns: Unused items in brand-new condition and original packaging can be returned within 30 days of the invoice date, with a 25% restocking fee unless otherwise specified. In some cases we can offer a lower fee with the balance as store credit. Shipping charges aren't refundable in either direction unless approved by AutoTalent.

Not returnable: special-order or custom items, and anything that has been installed, modified or altered.

Cancellations: free if the item is out of stock or we miss the ETA you agreed to. Other cancellations carry a 5% processing fee to cover card fees we can't recover. Special-order items can't be cancelled.

Damaged in transit? Report it to the carrier and to us within 48 hours, keep all packaging, and don't send anything back without our written approval.

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