RENNtech ECU+ Upgrade | C218 | CLS 63 AMG | 669 HP / 734 LB-FT | M157 | 5.5L V8 BiTurbo | MY2014

SKU

ECU:54.218.CLS63BT.4M-625

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$0.00

In stock

ECU+ Upgrade | Up to 669HP / 734LB-FT | Gains: +65HP & +88LB-FT

Category: CLS 63 AMG BiTurbo 4-MATIC

Description

RENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!

Our proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.

RENNtech M157 Biturbo ECU+ Upgrades are TÃœV approved!

Our proprietary ECU+ upgrade for the Mercedes M157 Biturbo 4-MATIC engine offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability.

Performance Numbers Overview

CLS 63 AMG (C218 | MY2014 | 4MATIC | M157 | 5.5L V8 BiTurbo) Stock Performance (at crank):

Rated by Mercedes-Benz: 577 HP @ 5,500rpm; 590 LB-FT @ 2,000-4,500rpm
Rated by RENNtech: 605 HP @ 5,500rpm; 646 LB-FT @2,800-3,900rpm
- Note: Mercedes M157 engine performance when measured, obtains higher power numbers than rated from factory.

CLS 63 AMG (C218 | MY2014 | 4MATIC | M157 | 5.5L V8 BiTurbo) Modified Performance (at crank):

Rated by RENNtech: 669 HP @ 5,500rpm; 734 LB-FT @ 3,700rpm

555 awhp @ 5,500rpm; 609 awtq @ 3,700rpm

Crank Performance Numbers are calculated with a 17% Drivetrain loss on 4MATIC vehicles.