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RennTech ECU+ Upgrade for the 2018-2020 S 560 BiTurbo: compact black power module

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RennTech HHT hand-held tuner graphic with the grey OBD2 module - RennTech ECU+ Upgrade for the 2018-2020 S 560 BiTurbo

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Back of the RennTech HHT tuner with its USB port and status lights - RennTech ECU+ Upgrade for the 2018-2020 S 560 BiTurbo

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RennTech HHT tuner seen from the connector end - RennTech ECU+ Upgrade for the 2018-2020 S 560 BiTurbo

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RennTech ECU+ Upgrade 2018-2020 Mercedes-Benz S 560 BiTurbo W222

Name: RennTech ECU+ Upgrade 2018-2020 Mercedes-Benz S 560 BiTurbo W222
Brand: RennTech
SKU: 54.222.S560BT
Price: 2890.6 USD
Availability: InStock

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Vendor: RennTech

SKU: 54.222.S560BT

Regular price: $2,890.60
Regular price: ~~$2,980.00~~
Sale price: $2,890.60
Unit price: per

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Not sure it fits? Text us your VINSee all fitment

Subtotal: $2,890.60

Quantity:

RennTech ECU+ Upgrade 2018-2020 Mercedes-Benz S 560 BiTurbo W222

Subtotal: $2,890.60

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Overview

RennTech built its name in Florida tuning high-performance engines, and this ECU+ Upgrade for the 2018-2020 S 560 BiTurbo is the result of in-house dyno development on the 4.0L M176 twin-turbo V8. Timing, throttle, air-fuel and boost tables are revised as one calibration, so the car pulls harder everywhere while staying a comfortable daily driver. RennTech rates the S 560 BiTurbo at up to 584 hp and 642 lb-ft with this upgrade.

Watch it explained

Features

Loaded through the RennTech HHT hand-held tuner via the OBD2 port, no ECU removal
The HHT stores the tuned and the factory file, so you can switch back to stock any time
Revised ignition timing, throttle mapping, air-fuel ratios and boost control
Gains across the entire rev range, not just at peak
Developed on RennTech's own dyno and road tested
Keeps factory-like drivability and reliability for daily use
93 octane or better recommended for the full calibration
RennTech lists a CARB Executive Order for this calibration

What is included

RennTech calibration for your car
Delivery as listed by RennTech for this model (HHT tuner or ECU flash)

Specs

Part number	54.222.S560BT
Engine	4.0L M176 twin-turbo V8
RennTech rated output	584 hp / 642 lb-ft

Fitment notes

For the S 560 BiTurbo (W222), 2018-2020 as listed by RennTech. Please include your VIN with the order so RennTech can confirm the exact application. The full calibration needs 93 octane or better fuel. Check the fitment table before ordering, and contact us if your car differs.

Fitment

Make	Model	Chassis	Year	Engine
Mercedes-Benz	S 560 BiTurbo	W222	2018-2020	4.0L M176 twin-turbo V8

Fitment

Year	Make	Model
2018–2020	Mercedes-Benz	S560

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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