Verified
Spools like a different car
Backpressure gone. Boost comes in a full 400rpm sooner and it pulls all the way to redline now. Fitment was dead-on — no massaging, no fighting the O2 bungs.
Marcus D.
E550 Biturbo Downpipes
$999.00
Sale price
$999.00
Regular price
$1,350.00
Skip to product information
W212 · M278
E550 Biturbo Downpipes
Unleash the true, uninhibited power of your Mercedes-Benz E550 BiTurbo with the industry's premier exhaust upgrade. When it comes to quality, craftsmanship, and raw performance, nothing on the market touches MBH Motorsports E550 Downpipes.
$999.00
Sale price
$999.00
Regular price
$1,350.00
- Made in the USAPhoenix, Arizona
- Hand TIG-weldedMiller Dynasty
- Lifetime warrantyUncoated headers & downpipes
On the dyno
What it puts down.
The gains listed for this part, measured at the wheels. Your numbers will move with the car, fuel and tune.
- Listed gain
Listed gains · at the wheels
Horsepower gain · with ECU tune
174 wheel horsepower gain
Torque gain · with ECU tune
217 wheel torque gain
From this part’s specs: +174 whp · +217 wtqShows the listed range, not a dyno sheet.
Inside the build
What sets these downpipes apart
Fitment
Built for these cars
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W212W212M278
Your car on the list? You're good to go.
The details
Specs & details
Unleash the true, uninhibited power of your Mercedes-Benz E550 BiTurbo with the industry's premier exhaust upgrade. When it comes to quality, craftsmanship, and raw performance, nothing on the market touches MBH Motorsports E550 Downpipes.
Engineered specifically to maximize the twin-turbo V8 platform, these downpipes are built to dominate the racetrack. Crafted in the USA from 100% 16-gauge stainless steel using large 3-inch tubing, they are designed to eliminate restrictive factory bottlenecks and endure extreme exhaust heat while delivering massive power gains throughout the entire RPM range.
The Dyno-Proven Performance
Factory downpipes create immense backpressure directly at the turbo outlets, choking spool-up and suffocating engine output. By opening up exhaust flow with our unrestricted 3-inch architecture, MBH Motorsports downpipes dramatically accelerate exhaust scavenging and reduce thermal stress on the turbochargers.
The real-world results are proven on the dyno. Paired with ECU calibration, this setup produces a massive 174 horsepower gain and 217 lb-ft torque gain over factory baseline. Low-end torque surges from the stock 430 lb-ft up to an immense 647 lb-ft of torque right around 3,200 RPM. Meanwhile, top-end output jumps from a factory peak of 340 HP to a blistering 498 HP, carrying a stout 476 HP deep into the rev range where stock piping falls off to just 302 HP.
Key Features & Specifications
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100% 16-Gauge Stainless Steel: Built in the USA entirely from premium 16-gauge stainless steel for maximum longevity and heat resistance.
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Full 3-Inch Tubing: Eliminates turbo backpressure to dramatically improve boost response, exhaust velocity, and spool times.
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Dyno-Backed Power Gains: Unlocks up to +174 HP and +217 lb-ft of torque when paired with an ECU tune.
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Complete Hardware Included: Comes complete with all necessary heavy-duty clamps and hardware needed to get the job done right.
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Sedan & Coupe Compatibility: Precision engineered for an exact fit on both Mercedes-Benz E550 BiTurbo Sedan and E550 Coupe models.
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Track-Proven Durability: Built to withstand high-boost track abuse and extreme exhaust gas temperatures without failure.
Unleash the Beast
Don't let restrictive factory piping suffocate your twin-turbo V8. Upgrade to MBH Motorsports 3-Inch Downpipes and experience the ultimate blend of American craftsmanship, aggressive exhaust sound, and unrelenting performance.
Disclaimer: For off-road racing and competition use only. This product is not intended to be installed on a registered vehicle for use on public roads or highways, and may never be installed on a registered or licensed vehicle for use on any public roads and highways.
$999.00
Questions about this part?Email us your question or VIN.
Email us
Email us
Straight from the owners
Built, bolted, proven
Real cars. Real dyno sheets. Here's what owners say after the headers go on.
5.0 / 5
3 verified builds
Ready for yours?
Complete your W212 build
Before you order
Straight answers
The questions we get asked most.
Still not sure?
Email us your question or VIN and we'll confirm fitment before you order.
sales@mbhmotorsports.com
Will this fit my car?
It's built for W212 · M278. Pick your car in the fitment check at the top of this page to confirm. Not listed, or engine swapped? Email us your VIN and we'll confirm fitment before you order.
Is there a warranty?
Yes. Headers and downpipes we build carry a lifetime warranty (coated or painted finishes excluded). Email us with any warranty question.
Where is it made?
Right here in the USA, in our Phoenix, Arizona shop.
Can I ask a question before I order?
Yes. Email us with your car and your question and we'll get back to you. If you're unsure about fitment, include your VIN.