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.
SLK55 M152 Long Tube Headers
No coating
$2,962.00
Sale price
$2,962.00
Regular price
$2,962.00
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R172 · M152
SLK55 M152 Long Tube Headers
MBH Motorsports is proud to offer the very first long tube header system to market for the M152-powered Mercedes SLK55 AMG. The naturally aspirated 5.5-liter M152 is a phenomenal engine, but restrictive factory exhaust components severely limit its true potential....
- Chassis Mercedes-Benz SLK55 AMG (R172)
$2,962.00
Sale price
$2,962.00
Regular price
$2,962.00
- 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
70 wheel horsepower gain
From this part’s specs: +70 whpShows the listed range, not a dyno sheet.
Inside the build
What sets these long tube headers apart
Fitment
Built for these cars
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R172R172M152
Your car on the list? You're good to go.
The details
Specs & details
MBH Motorsports is proud to offer the very first long tube header system to market for the M152-powered Mercedes SLK55 AMG. The naturally aspirated 5.5-liter M152 is a phenomenal engine, but restrictive factory exhaust components severely limit its true potential. By alleviating these severe bottlenecks, our long tube headers transform the compact SLK55 into a true supercar killer. When paired with proper performance ECU tuning, this system unlocks massive, dyno-proven gains exceeding +70 wheel horsepower.
Complete Bolt-On System & Handcrafted USA Quality
Unlike many aftermarket exhaust upgrades, this kit is engineered as a complete, 100% bolt-on setup. To make installation as seamless as possible, the system includes the matching mid-section, ensuring a perfect fit with absolutely zero cutting, welding, or fabrication required. Proudly handcrafted in the USA using premium heavy-duty 16-gauge T-304 American stainless steel, these headers offer unmatched thermal endurance, structural integrity, and maximum exhaust scavenging for your SLK55.
Key Features:
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Pioneering Design: The first long tube header system ever developed specifically for the M152-powered SLK55 AMG.
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Supercar Power Gains: Unlocks staggering performance increases of over 70+ wheel horsepower when paired with an ECU tune.
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Complete Bolt-On Kit: Includes the matching mid-section for a true, hassle-free bolt-on installation with zero cutting or welding required.
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USA 16-Gauge 304 Stainless Steel: Proudly hand-fabricated in the USA for lifetime durability and extreme thermal resistance.
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Aggressive V8 Sound: Dramatically enhances the exhaust note, unleashing the deep, commanding growl of the 5.5L V8.
Compatibility:
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Engine: Mercedes-AMG M152 5.5L V8 (Naturally Aspirated)
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Chassis: Mercedes-Benz SLK55 AMG (R172)
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.
No coating
$2,962.00
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 R172 · M152. 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.