RennTech HHT ECU Upgrade 2012-2019 Mercedes-Benz SL 65 AMG R230

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Brand: RennTechSKU / Part #: ECU:54.231.SL65

Regular price: $3,390.15
Regular price: ~~$3,495.00~~
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RennTech HHT ECU Upgrade 2012-2019 Mercedes-Benz SL 65 AMG R230

Subtotal: $3,390.15

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Overview

If you want more from the 2012-2019 SL 65 AMG without touching the hardware, this RennTech HHT ECU Upgrade is the cleanest way to get it. RennTech revises the factory calibration for the 6.0L M279 twin-turbo V12, raising power and torque through the full band and keeping the smooth manners the car left the factory with. RennTech rates the SL 65 AMG at up to 735 hp and 836 lb-ft with this upgrade, a gain of 114 hp and 100 lb-ft.

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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

What is included

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

Specs

Part number	54.231.SL65
Engine	6.0L M279 twin-turbo V12
RennTech rated output	735 hp / 836 lb-ft
Gain (RennTech)	+114 hp / +100 lb-ft

Fitment notes

For the SL 65 AMG (R230), 2012-2019. 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 65 AMG	R230	2012-2019	6.0L M279 twin-turbo V12

Fitment

Year	Make	Model
2012–2012	Mercedes-Benz	SL65 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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