• Thanks for contacting us! We'll get back to you as soon as possible
Single red RennTech coil-over spring - ECU+ Upgrade for the 2016-2019 GLE 450 SUV }
RennTech tire circumference module for the Sprinter - ECU+ Upgrade for the 2016-2019 GLE 450 SUV }
RennTech ecu+ upgrade - ECU+ Upgrade for the 2016-2019 GLE 450 SUV }
RennTech ecu+ upgrade, view 2 - ECU+ Upgrade for the 2016-2019 GLE 450 SUV }
RennTech ecu+ upgrade, view 3 - ECU+ Upgrade for the 2016-2019 GLE 450 SUV }
Brand: RennTechSKU / Part #: 54.166.GLE450BT
Regular price
$2,172.80
Regular price
$2,240.00
Sale price
$2,172.80
Check your purchasing power Apply at checkout
Subtotal: $2,172.80
RennTech ECU+ Upgrade 2016-2019 Mercedes-Benz GLE 450 SUV W166
Subtotal: $2,172.80

Questions before you buy? Talk to a specialist.

Fitment and product questions · 9am–6pm Pacific

Free Shipping

Free standard shipping on orders over $99

Coupon Code on First Order

Coupon Code on First Order

Price Match Guarantee

Price Match Guarantee

Free shipping on $99+ order

Free shipping on $99+ order

30-days Returns

30-days Returns

Learn more about our Price match policy
Overview

RennTech built its name in Florida tuning high-performance engines, and this ECU+ Upgrade for the 2016-2019 GLE 450 SUV is the result of in-house dyno development on the 3.0L M276 twin-turbo V6. 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 car at 392 hp and 463 lb-ft with this upgrade. That is a gain of 30 hp and 84 lb-ft.

Key details

Up to 392 hp and 463 lb-ft, gains of 30 hp and 84 lb-ft, CARB certified for all 50 states. RennTech has tuned Mercedes engine computers since they first appeared in the mid-1980s, and the gains cover the whole rev range.

Watch it explained

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
  • 93 octane or better recommended for the full 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 54.166.GLE450BT
Engine 3.0L M276 twin-turbo V6
Rated output 392 hp / 463 lb-ft
Gain +30 hp / +84 lb-ft
Shipping weight 3 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 GLE 450 SUV W166 2016-2019 3.0L M276 twin-turbo V6
Fitment
YearMakeModel
2016–2019Mercedes-BenzGLE450

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.

Reviews & questions

Others People Also Bought