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.
GLC63 AMG Biturbo Downpipes
$1,552.00
Sale price
$1,552.00
Regular price
$1,893.00
Skip to product information
X253 · M177
GLC63 AMG Biturbo Downpipes
The MBH Motorsports GLC63 AMG Biturbo Downpipes are a mandatory performance upgrade to unleash the true potential of your high-performance SUV. The factory exhaust system heavily restricts the 4.0L biturbo V8, choking its true capabilities. By eliminating these severe bottlenecks,...
- Engine Mercedes-AMG M177 4.0L V8 Biturbo
$1,552.00
Sale price
$1,552.00
Regular price
$1,893.00
- 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 with a “+”: this much or more
Listed gains · at the wheels
Horsepower gain · with ECU tune
180 or more wheel horsepower gain
Torque gain · with ECU tune
170 or more wheel torque gain
From this part’s specs: 180+ whp · 170+ 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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X253X253M177
Your car on the list? You're good to go.
The details
Specs & details
The MBH Motorsports GLC63 AMG Biturbo Downpipes are a mandatory performance upgrade to unleash the true potential of your high-performance SUV. The factory exhaust system heavily restricts the 4.0L biturbo V8, choking its true capabilities. By eliminating these severe bottlenecks, our downpipes free up massive exhaust flow, allowing your GLC63 to run much more efficiently, spool the turbos faster, and deliver highly noticeable gains in both horsepower and torque.
Unrivaled USA Craftsmanship
When you invest in a premium vehicle like the GLC63 AMG, gambling on cheap, mass-produced imported exhaust components is a risk you simply shouldn't take. Do not fall for the fancy marketing of overseas imports; at MBH Motorsports, we exclusively specialize in Mercedes-Benz performance, and we build everything right here in the United States. Proudly hand-fabricated from heavy-duty 16-gauge 304 American stainless steel, we guarantee that there is no better-built downpipe on the market for your GLC63.
Key Features:
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Significant Power Gains: 180+ hp 170+ tq with tuning. Alleviates severe factory backpressure to unlock substantial increases in horsepower and torque.
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Maximized Turbo Efficiency: Frees up unrestricted exhaust flow, allowing the twin turbos to run cooler and spool significantly faster.
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USA 16-Gauge 304 Stainless Steel: Proudly hand-fabricated in the USA for elite structural integrity and extreme thermal endurance.
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Uncompromising Quality: Premium American-made construction designed to far outlast and outperform cheaper overseas imports.
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Aggressive Exhaust Note: Drastically enhances the acoustic profile, unleashing the deep, raw growl of the 4.0L biturbo V8.
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The MBH Guarantee: Backed by our promise that you are getting the absolute finest downpipes available for the GLC platform.
Compatibility:
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Engine: Mercedes-AMG M177 4.0L V8 Biturbo
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Chassis: Mercedes-Benz GLC63 / GLC63 S AMG (X253 SUV / C253 Coupe)
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.
$1,552.00
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?
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 X253 · M177. 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.