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RennTech ECU Upgrade for the 2022-2023 SL 63 AMG BiTurbo: red RennTech Power Module housing seen face-on

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RennTech Power Module in front of its box - RennTech ECU Upgrade for the 2022-2023 SL 63 AMG BiTurbo

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Silver RennTech Power Module housing - RennTech ECU Upgrade for the 2022-2023 SL 63 AMG BiTurbo

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Red RennTech Power Module from a three-quarter angle - RennTech ECU Upgrade for the 2022-2023 SL 63 AMG BiTurbo

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RennTech ECU Upgrade 2022-2023 Mercedes-Benz SL 63 AMG BiTurbo R232

Name: RennTech ECU Upgrade 2022-2023 Mercedes-Benz SL 63 AMG BiTurbo R232
Brand: RennTech
SKU: 54.177.RPM.63
Price: 3724.8 USD
Availability: InStock

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Vendor: RennTech

SKU: 54.177.RPM.63

Regular price: $3,724.80
Regular price: ~~$3,840.00~~
Sale price: $3,724.80
Unit price: per

Apply at checkout

Not sure it fits? Text us your VINSee all fitment

Subtotal: $3,724.80

Quantity:

RennTech ECU Upgrade 2022-2023 Mercedes-Benz SL 63 AMG BiTurbo R232

Subtotal: $3,724.80

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Overview

RennTech built its name in Florida tuning high-performance engines, and this ECU Upgrade for the 2022-2023 SL 63 AMG BiTurbo is the result of in-house dyno development on the 4.0L twin-turbo. 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 SL 63 AMG BiTurbo at up to 734 hp and 753 lb-ft with this upgrade.

Features

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

What is included

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

Specs

Part number	54.177.RPM.63
Engine	4.0L twin-turbo
RennTech rated output	734 hp / 753 lb-ft

Fitment notes

For the SL 63 AMG BiTurbo (R232), 2022-2023 as listed by RennTech. Please include your VIN with the order so RennTech can confirm the exact application. Check the fitment table before ordering, and contact us if your car differs.

Fitment

Make	Model	Chassis	Year	Engine
Mercedes-Benz	SL 63 AMG BiTurbo	R232	2022-2023	4.0L twin-turbo

Fitment

Year	Make	Model
2022–2023	Mercedes-Benz	SL63 AMG

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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