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.
S550 W222 Biturbo Downpipes
$999.00
Sale price
$999.00
Regular price
$1,350.00
Skip to product information
W222 · M278
S550 W222 Biturbo Downpipes
The Mercedes S550 sits at the pinnacle of luxury performance, blending effortless refinement with twin-turbo V8 muscle. At MBH Motorsports, we engineered our S550 downpipe system to eliminate factory exhaust restrictions and elevate your luxury sedan directly into AMG territory.
- Engine Mercedes-Benz M278 4.6L V8 Biturbo
- Chassis Mercedes-Benz S550 W222
$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
80 wheel horsepower gain
From this part’s specs: +80 whpShows the listed range, not a dyno sheet.
Inside the build
What sets these downpipes apart
Fitment
Built for these cars
-
W222W222M278
Your car on the list? You're good to go.
The details
Specs & details
The Mercedes S550 sits at the pinnacle of luxury performance, blending effortless refinement with twin-turbo V8 muscle. At MBH Motorsports, we engineered our S550 downpipe system to eliminate factory exhaust restrictions and elevate your luxury sedan directly into AMG territory.
When paired with ECU software calibration, this downpipe upgrade delivers dyno-proven gains of up to +80 wheel horsepower, significantly sharpening throttle response and unleashing aggressive acceleration across the entire rev range.
Handcrafted American Quality & Quick Installation
Every set is fabricated right here in the USA using heavy-duty, 16-gauge T-304 American stainless steel. Built to withstand extreme heat cycles without cracking or warping, this system is precision-engineered for an exact OEM fit. The streamlined bolt-on design allows for a hassle-free install that takes less than an hour to complete.
Key Features:
-
AMG-Level Output: Delivers gains of up to +80 WHP when paired with performance ECU tuning.
-
Quick 1-Hour Installation: Direct bolt-on design engineered to install in less than an hour using factory mounting points.
-
Premium US Stainless Steel: Handcrafted in the USA from heavy 16-gauge T-304 American stainless steel for lasting durability.
-
Optimized Turbo Spool: Significantly reduces backpressure off the turbos for immediate boost onset and smoother power delivery.
-
Refined V8 Tone: Unlocks a deeper, authoritative exhaust note under throttle while maintaining factory cabin quietness at cruising speeds.
Compatibility:
-
Engine: Mercedes-Benz M278 4.6L V8 Biturbo
-
Chassis: Mercedes-Benz S550 W222
Disclaimer: For off-road racing and competition use only. This product is not intended or legal for installation on registered, licensed vehicles operated on public roads or 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 W222 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 W222 · 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.