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RennTech stage i turbo upgrade - Stage I Turbo Upgrade for the 2018-2021 AMG GT C

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G-Class M177 engine bay with RennTech parts fitted - Stage I Turbo Upgrade for the 2018-2021 AMG GT C

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Stock turbo beside the RennTech upgraded turbo - Stage I Turbo Upgrade for the 2018-2021 AMG GT C

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RennTech hybrid turbochargers for the M178 - Stage I Turbo Upgrade for the 2018-2021 AMG GT C

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RennTech stage i turbo upgrade, view 2 - Stage I Turbo Upgrade for the 2018-2021 AMG GT C

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RennTech stage i turbo upgrade, view 3 - Stage I Turbo Upgrade for the 2018-2021 AMG GT C

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Pair of black RennTech blow-off valve adapters - Stage I Turbo Upgrade for the 2018-2021 AMG GT C

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RennTech stage i turbo upgrade, view 4 - Stage I Turbo Upgrade for the 2018-2021 AMG GT C

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RennTech stage i turbo upgrade, view 5 - Stage I Turbo Upgrade for the 2018-2021 AMG GT C

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RennTech Stage I Turbo Upgrade 2018-2021 Mercedes-AMG GT C C190

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Brand: RennTechSKU / Part #: PKG.09.178.1012

Regular price: $9,680.60
Regular price: ~~$9,980.00~~
Sale price: $9,680.60
Unit price: per

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Subtotal: $9,680.60

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RennTech Stage I Turbo Upgrade 2018-2021 Mercedes-AMG GT C C190

Subtotal: $9,680.60

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Overview

RennTech's Stage I Turbo Upgrade for the 2018-2021 AMG GT C replaces the factory turbochargers with larger, lightweight billet-wheel units and pairs them with a matching RennTech calibration. It is one of the biggest power steps you can make on the 4.0L M178 twin-turbo V8. RennTech rates the car at 714 hp and 604 lb-ft with this upgrade.

Key details

Pairs upgraded turbos with a matching ECU calibration for gains of up to 139 hp and 83 lb-ft. The AMG GT's twin-turbo V8, from the second car AMG developed entirely on its own, has plenty of headroom.

Features

Larger billet compressor wheels
Matched RennTech engine calibration
Built to handle the added boost reliably

What is included

Turbo Upgrade
ECU Upgrade

Specs

Part number	PKG.09.178.1012
Engine	4.0L M178 twin-turbo V8
Rated output	714 hp / 604 lb-ft
Shipping weight	10 lb

Fitment notes

Fitment is as listed by RennTech for this part number. Your VIN is required with the order.

Fitment

Make	Model	Chassis	Year	Engine
Mercedes-Benz	AMG GT C	C190	2018-2021	4.0L M178 twin-turbo V8

Fitment

Year	Make	Model
2018–2021	Mercedes-Benz	AMG GT C

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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