Velos Designwerks | Mercedes 4.6L M278 Biturbo V8 Performance Software E550 Video

Subscribe
Sep 22, 2015 | 05:23 PM
  #1  
Members,

Through careful remapping of the factory ECU and countless hours of testing, Velos Designwerks is pleased to announce the release of its performance software for the M278 4.6 Liter Biturbo V8 Engine. Producing an astounding 402 hp and 443 lb-ft off of the assembly line, the Velos Designwerks engineering team has been able to increase this powerplant’s output to 473 hp 528 lb ft of torque with peak gains of 71 hp @4300 rpm and 85 lb ft of torque @4500 rpm. The stage 2 performance software for your 4.6L Biturbo transforms this torque strong vehicle into a torque monster.

The Velos Designwerks 4.6L M278 Performance Software involves a remapping of several of the factory’s ECU maps including, but not limited to, the fuel maps, throttle maps, ignition maps, and limiters.

Pricing now available, email or PM for more information

Performance Figures: - Proven and Tested in 90+ degree weather

Peak Horsepower Gain: 71 @4300 rpm (59 hp to the wheels)

Peak Torque Gain: 85 lb-ft @4500 rpm (71 lb-ft to the wheels)

Video:

https://vimeo.com/48034025



https://vimeo.com/48034025
Reply 0
Oct 20, 2015 | 03:00 PM
  #2  
PM's replied
Reply 0
Aug 21, 2018 | 04:35 AM
  #3  
Quote: PM's replied
how much for stage 1 & stage 2?
Reply 0
May 2, 2021 | 11:11 AM
  #4  
Sometimes this forum is the worst and unhelpful at even trying to answer questions.

​​​​add "*******" when searching on Google. Know what type of ecu you have (i.e. me 2.8.1 or whatever you have). And you'll find many posts on them cracking the ecu for different purposes. I used it to virginise a me2.8.1 ecu. For my car, it seems they use ktag or kess but no clue on yours.
edit: looks like they have that website banned. Try searching your ecu and then ktag
Reply 0
Subscribe
Currently Active Users (1)
 
story-0

6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-1

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-2

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-3

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-4

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-5

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-6

Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-7

5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-8

Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE
story-9

10 Most Reliable Mercedes-Benz Models You Can Buy Used

Slideshow: From bulletproof sedans to surprisingly tough SUVs, these Mercedes models proved that the three-pointed star can go the distance.

By Verdad Gallardo | 2026-04-08 09:55:49


VIEW MORE