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Mercedes GL550: Performance Tuning the M278 Engine

Mercedes GL550: Performance Tuning the M278 Engine

GL550 Overview

The Mercedes GL550 is a full-size luxury SUV that offers excellent comfort as well as exceptional performance. Most of these models come from the USA, specifically the Mercedes manufacturing plant in Alabama. Since it’s very first year of inception, 2006, the GL550 has been put through a multitude of different tests and environments to better equip future models. Today, we have a reliable vehicle with a lot of potential under the hood if desired by the driver! Read on to learn more about our process of tuning the GL550 to help it realize its full potential! Another blog post by us details a GL450 tune as well!

Stock Mercedes GL550 Specs

The Mercedes GL550 has a M278 engine that we have mentioned in previous posts on our site. Like we mentioned before, we realized the M278’s potential right away! The M278 is a V8 Twin Turbo Charged Engine. The engine model before it, the M273, was naturally aspirated, the M278 features twin turbochargers, one per cylinder bank and gasoline direct injection with multi spark ignition. The M278 engine is much more fuel efficient that the M273 engine it replaces. The M278 engine for the GL550 has a horsepower right at 429, while the torque is at 516. These figures are respectable for a stock SUV of this size.

Something to note about this Mercedes is its length. Mercedes upsized the GL-class slightly for 2013 and beyond, increasing the length to 202.6 inches from 200.7, width to 78.0 from 75.4, and height to 72.8 from 72.4. Car and Driver also made a great point about why this Mercedes is unlike any other vehicle on the market, “Although Audi’s seven-seat Q7 and BMW’s X5 cost tens of thousands dollars less than the big Mercedes, they don’t offer the same passenger or cargo room”. This is especially important when thinking about why SUV’s are typically purchased. SUV’s serve a purpose of being able to transport a group of people. When the Mercedes GL500 offers superb passenger and cargo room, this is what differentiates the vehicle right off the bat.

Tuning the M278 Engine

At PRESSERTech we take great pride in servicing our customers. We will do whatever it takes to expand your vehicles performance. Our garage has a group of people that have years of experience, therefor there is not too much we haven’t seen or dealt with. When we are looking at a Stage 1 tune, you can expect your Mercedes GL550 horsepower to skyrocket to the 510 Horsepower. To go along with this, the Stage 1 tune will also inflate the vehicles torque to the 590 LBS-FT as well. Our stage 1 tune is an affordable option for many car owners looking to take that initial step of expanding their vehicles capabilities.

For the drivers who are seeking a truly exceptional performance package, our Stage 2, Full Power Tune is what you are looking for. In the case of a Stage 2 full power tune, we can heighten your Mercedes GL550’s horsepower to the 540 Horsepower and a staggering 705LBS-FT of torque! This package is very popular with our customers. Not only does it unleash your cars full potential, but it also at an exceptional price unlike most Mercedes dealers.

Something to Think About

These numbers explain why we love tuning these cars. Now you know Mercedes left so much power on the table with this vehicle. We can help you enjoy the true capabilities of a tuned Mercedes at a reasonable cost.

Future Inquires

Our performance tuning guide has more information about what we do here at Pressertech. We also encourage you to give us a call at (770) 648-0500 or use our Contact Form. We’re happy to chat with you about what a performance tune can do for your vehicle. Call us now.

Performance Tuning a Mercedes S55 AMG Max Power

Performance Tuning a Mercedes S55 AMG Max Power

Background on the Mercedes S55 AMG V8 Kompressor

When looking at the Mercedes S55 AMG with a 5.4 Liter V8 supercharged engine, this car is older, but still packs a punch. We have worked on similar vehicles like this one, a 2003 SL55 model. But when looking at stock numbers, the S55 AMG was running at 493 horsepower and 516 LBS-FT torque. This car is great but we specialize in maximizing a cars potential. Our passion is to Performance Tune cars to reach their full potential so we started performance tuning a Mercedes S55 AMG. Over the past 20 years, cars have been getting more complex not only on the outside, but on the inside as well. We have adapted as the car industry has around us and we have done some great work!

S55 AMG Tune Specs

When we talk to our clients about Performance Tuning a Mercedes S55 AMG or any other model like the Mercedes SL55 AMG tune we did, we speak in terms of stages. The anticipated results of a Stage 1 tune with this vehicle was 530 horsepower and 565 LBS-FT torque. A Stage 2 tune would bring the vehicle’s performance up to around 535 horsepower and an impressive 605 LBS-FT torque. While this S55 AMG would see an overall upgrade, our shop at PRESSERTech was most excited about what we’d be able to do in terms of the torque upgrade.

With a Stage 2 tune in our plans, we got to work in the PRESSERtech garage. When our experienced technician’s tune, they target a small, but vital piece of technology under the car’s hood. This piece of technology is referred to as the engine control unit or ECU in shorter terms. If you’ve read some of our other blog posts or watched some of our videos, you know that this process is complex. We remove the ECU and use our in-house technology to modify its settings. In this case, breaking a Mercedes S55 AMG from its factory specs. With this stage 2 tune underway, we would be able to see what this car could really do.

Performance Tune Results

After Stage 2 of performance tuning a Mercedes S55 AMG, it was evident that our excitement beforehand was well warranted. We saw gains all around, including an increase of 42 more horsepower and 87 more LBS-FT of torque. That’s a 16% increase in torque for this Mercedes Benz, and we couldn’t be happier to share these results with our client. As car and driver said, “The Mercedes S55 AMG will just flat dust anything from the BMW 7-series portfolio”

Our Service

Performance Tuning a Mercedes S55, or even fixing up a CL55 AMG V8 like we outlined in this article, is an affordable way to make a potential huge improvement in your vehicle’s horsepower and torque. At PRESSERTech, we offer an affordable tune to increase your performance of your vehicle, new or old. If you’re thinking about a performance tune, give us a call at (770) 648-0500 or use our Contact Form. We’re happy to chat with you about what a performance tune can do for your vehicle.