🇺🇸 4th of July Sale – Up To 30% Off. No Code
+1 772-277-2495

Mon–Fri: 9:30 AM–4:30 PM EST

Ask a K2 Sales Tech

Ask a K2 Sales Tech

Verify parts fit & get product recommendations

Mon–Fri: 10 AM–4 PM EST

+1 772-277-2495 Or ask via live chat

Mercedes-Benz W205 C43 Racing Valved Exhaust System - Yonristic Performance

$2,249.10 $2,499.00 Save $249.90
  • Fitment verified for YOUR exact year/model/trim
  • Not sure? Call +1 772-277-2495 for a real specialist to help you order
  • Got install questions? Text a tech who's actually installed this part before, even after it arrives
In Stock - Ships in 2 to 5 days
Detecting shipping cost...

Select your exact model and see if this part fits

Yonristic Performance  |  SKU: MB-C43-W205-LB

Wrong fit or arrives damaged? Free replacement or refund

30,000+ Happy Customers30,000+ Happy Customers
30-Day Returns30-Day Returns
One Year WarrantyOne Year Warranty
LIVE NOW: Automatic entries into the E90 Giveaway!
Every $1 Spent = Entries into our E90 Giveaway

Details

Mercedes C43 valved exhaust: Ultimate Performance and Sound Upgrade

Unleash the True Voice of the Bi-Turbo V6.

The W205 C43 AMG blends AMG engineering with daily-driver comfort—powered by a 3.0L twin-turbocharged V6 that pulls hard across the powerband. But the stock exhaust system doesn’t let the motor sing. That’s why Yonristic Performance engineered a full valved exhaust system for the C43 that delivers both refinement and raw aggression—on your terms.

At its core is a true 3.0-inch high-flow midpipe, expertly routed for smooth transitions and maximum flow. The system reduces backpressure, enhances throttle response, and reshapes the tone of the C43 into something far more aggressive and exotic. Whether you’re at wide-open throttle or cruising the freeway, the difference in tone and performance is immediately felt.

Featuring dual valved rear mufflers, this setup gives you full control over your sound. In quiet mode, the car remains calm and composed—perfect for daily use or long-distance drives. Open the valves, and the C43 comes alive with a sharper, deeper tone and satisfying crackles during shifts and overrun.

Each system is hand TIG-welded from premium 304 stainless steel or optional Grade 5 titanium, offering both strength and significant weight savings. Designed for a direct bolt-on installation, the system retains compatibility with factory mounting points and OEM-style tips, and includes an optional remote-controlled valve kit for vehicles without factory valve wiring.

Key Features:
✔️ 3.0” mandrel-bent midpipe – maximized exhaust velocity and tone clarity
✔️ Electronic valved mufflers – dual-mode sound for comfort and sport
✔️ Hand TIG-welded 304 stainless steel – high-performance strength and finish
✔️ Grade 5 titanium option available – lighter, sharper, more exotic sound
✔️ OEM-style fitment – bolt-on installation with no cutting or tuning required
✔️ Valve controller kit available – remote-operated for non-valve-equipped vehicles
✔️ No CEL (Check Engine Light) – emissions-safe and sensor-compatible
✔️ Supports factory or aftermarket tips and diffusers

Vehicle Fitment:

  • Mercedes-Benz C43 AMG (W205)
    – Sedan / Coupe / Cabriolet
    – Model Years: 2016–2021
    – Engine: 3.0L Twin-Turbocharged V6 (M276)


Make Your AMG Sound Like One.

From cold start to redline, the Yonristic Performance Exhaust System transforms the C43 from quiet luxury to roaring performance—with the flip of a switch.

Refined when you want it. Ferocious when you don’t.
Engineered to let the Bi-Turbo V6 speak for itself.

 

Precision Engineering for the Mercedes C43

The Mercedes C43 valved exhaust from Yonristic Performance is engineered specifically for the W205 chassis, ensuring a perfect fit and optimized functionality. Crafted from high-quality stainless steel, this racing exhaust provides exceptional durability and resistance to corrosion. Its valved design allows drivers to control the exhaust sound with ease, switching between a quiet mode and a thrilling racing roar, adapting to any driving condition. This feature enhances both the driving experience and daily usability, making it an ideal upgrade for enthusiasts who demand versatility and high performance. Installation is straightforward, maintaining factory mounting points for a seamless setup.

Enhanced Performance and Sound Dynamics

This valved exhaust system improves exhaust flow, resulting in increased horsepower and torque for the Mercedes C43. By reducing back pressure, the system allows the engine to breathe better, optimizing performance across all RPM ranges. The electronically controlled valves also fine-tune the sound output, delivering a deep, aggressive tone when opened, perfect for spirited driving and track days. When closed, the exhaust maintains a subdued, comfortable sound level for everyday use. This versatility offers a balanced combination of performance gains and noise control, elevating the overall driving experience.

Durability and Style Combined

Yonristic Performance’s racing valved exhaust system for the Mercedes C43 is not only built for performance but also designed with aesthetics in mind. Featuring polished stainless steel tips with a distinctive aggressive look, the exhaust system enhances the rear profile of the vehicle, instantly upgrading its visual appeal. The robust construction ensures longevity even under demanding conditions, making it suitable for both street and track environments. With a seamless blend of style, sound, and performance, this valved exhaust system offers enthusiasts a comprehensive upgrade that embodies the spirit of Mercedes-Benz engineering excellence.

 

 

Fitment

Our Guarantee

Warranty Assurance:

At K2 Industries, your satisfaction is our priority, and we stand behind the quality of our products. Here's a brief overview of our warranty:

Defect Coverage:
If you find a defect after receiving your order, get in touch with us. We're committed to resolving the issue, whether it involves a replacement, repair, or refund.

Installation Note:
Please inspect your purchase before installation. Unfortunately, damages post-installation are not covered, so ensure everything looks good beforehand.

Claims Made Simple:
Need to make a claim? Reach out to us at support@k2-industries.com. We're here to assist you. Just keep your original packaging and documentation handy.

Your Satisfaction Matters:
Your trust in K2 Industries is appreciated. We're dedicated to ensuring your satisfaction with our quality automotive parts.

Shipping & Returns

Shipping Information:

At K2 Industries, we strive to provide a seamless and efficient shopping experience for automotive enthusiasts like you. Our commitment is to deliver high-quality parts to your doorstep with the utmost care.

Fast and Reliable Shipping:
Many of our products are stocked in our local warehouse, ensuring swift processing and delivery. Orders placed for these items typically ship within 2-5 business days, allowing you to get your parts in no time.

Extended Selection, Global Reach:
To offer you a broader range of automotive parts, some items are sourced from trusted suppliers around the world. While these products might have a slightly longer processing time, we assure you that the wait is worth it for the exceptional quality and value they bring.

Shipping Transparency:
For products shipped internationally, we provide estimated delivery times on the product page. Rest assured, we are continually working to optimize our supply chain and minimize any potential delays.

Combined Shipments:
To streamline your shopping experience, if your order includes items from both our local warehouse and international suppliers, they may be shipped separately. You will receive separate tracking information for each shipment.

Questions or Concerns?
If you have any questions about shipping or would like assistance tracking your order, our dedicated customer support team is here to help. Feel free to reach out to us at support@k2-industries.com.

You can also track your order here

Thank you for choosing K2 Industries for your automotive needs. We appreciate your trust in us.

FAQs

Will this require a tune after installation?

Bolt-ons like exhaust tips, cat-backs, and basic intakes usually don't. Larger mods — turbo upgrades, supercharger kits, headers — typically need an ECU tune to run safely. The spec sheet indicates if tuning is recommended.

Is this part emissions / CARB compliant?

If you're in California or another CARB-regulated state, check the CARB status on this page before ordering. Many performance parts are off-road or competition use only — if so, we say it clearly.

Will installing this void my factory warranty?

Modifications can affect manufacturer warranty on related components only — not your entire warranty. The Magnuson-Moss Warranty Act protects you from blanket warranty voids. If warranty matters to you, talk to your dealer before installing.

Can I install this myself?

Depends on the part. Bolt-ons are DIY-friendly. Turbo upgrades, headers, and supercharger kits need a professional shop. The product description gives a difficulty estimate.

The K2 Difference

  • • Built by enthusiasts who've made every fitment mistake you're afraid of. Now we verify parts for 30,000+ builds a year with zero wrong-part claims.
  • • Real specialists answer your questions in minutes, not chatbots reading scripts. We've built the same cars you're building.
  • • Freight damage, wrong parts, installation question, we handle it so you don't deal with suppliers or shipping companies.
Founder photo

Built By Someone Who's Been There

Max, the Owner, started in his garage making E36 M3 tail lights in his own oven.

  • • Started modifying cars before he could legally drive them
  • • Spent years hunting down parts that actually fit and don't suck
  • • Made the same fitment mistakes you're afraid of
Founder photo

What You Get With Every Order

Products Selected to Meet Quality & Fitment Standards we Stand Behind.
Products Selected to Meet Quality & Fitment Standards we Stand Behind.
Get Help From People Who Actually Understand Builds & Fitment.
Get Help From People Who Actually Understand Builds & Fitment.
Designed to Resist UV Exposure, Wear, and Everyday Use.
Designed to Resist UV Exposure, Wear, and Everyday Use.
Join Thousands of Builders Who
Trust K2
Join Thousands of Builders Who Trust K2

What Sets K2 Industries Apart?

We don’t just sell parts. We actually give a damn.
Pre-Order Fitment Verification
Damage Replacement
Real Experts Answer the Phone
Post-Purchase Installation Support
Curated Quality
30-Day Returns
K2 Industries
Other Brands
K2 Industries
Other Brands
Pre-Order Fitment Verification
Damage Replacement
Real Experts Answer the Phone
Post-Purchase Installation Support
Curated Quality
30-Day Returns
Add to Cart
GuaranteePerfect fit guaranteed

Frequently Asked Questions

How do I know this will actually fit my car?

Every part listing shows compatible years, models, and trims. But here's the thing—trim packages and factory options can be confusing. If you're not 100% certain, text us at 772-277-2495 with your VIN or photos of your car. We'll verify fitment before you order so you're not stuck with an $800 part that doesn't fit. We've done this for 30,000+ builds. We've seen every weird trim combo and factory option. Takes us 2 minutes to verify, saves you weeks of headaches.

What if the part arrives damaged or is the wrong item?

We handle it. You don't fight with freight companies or file claims. Text us photos within 48 hours of delivery. If it's damaged or wrong, we ship a replacement immediately. You're not waiting 6 weeks for a freight claim to process. We eat the cost, not you. This is why we package everything like it's going to war. But if something slips through, we fix it ASAP. No forms, no back-and-forth, no "file a claim and wait." Just text us and we handle it.

Can I install this myself or do I need a shop?

Depends on the part. Emblems, front lips, some spoilers, bolt-on, DIY-friendly, you can do it in your driveway with basic tools. Full bumpers, hoods, wide-body kits, possible for experienced DIYers but most people take them to a shop for paint and install. Check the product description for installation difficulty. If you're unsure, text us. We'll be honest about whether you can handle it or if you should take it to a pro. We'd rather you know upfront than get frustrated halfway through.

What's your return policy if it doesn't fit or I don't like it?

30 days, unused parts in original packaging. You pay return shipping unless we sent the wrong part or it arrived defective. Once you install it, modify it, paint it, or mount it, we can't take it back. That's why we push so hard on verifying fitment BEFORE you order. We don't want you stuck with something you can't use. Text us before ordering if you're unsure. We'll confirm fitment so you never have to worry about returns.

Do you offer financing?

Yes. Affirm and Shop Pay available at checkout for orders over $50. Split payments over 3-12 months depending on order size. No hard credit check to see your options. Most people use this for big-ticket items like body kits, suspension setups, or wheel/tire packages. Rates vary based on credit. You see the monthly payment before you commit. Makes it easier to build now instead of waiting months to save up.

What if I have questions after I receive the part?

Text 772-277-2495. We don't disappear after you buy. Fitment questions, installation issues, "does this bolt go here" questions... we'll walk you through it. We've installed these parts ourselves or helped hundreds of people install them. You're not getting transferred to a call center in the Philippines. You're texting someone who's actually installed your part before. If we can't help remotely, we'll recommend a local shop that knows these parts.

Why should I buy from K2 instead of eBay/Amazon/other sites?

eBay and Amazon sellers don't answer fitment questions. They don't verify your VIN before shipping. They don't handle freight damage claims for you. If something goes wrong, you're filing disputes and waiting weeks. We're builders selling to builders. We verify fitment before you order. We handle damage claims same-day. We answer texts in minutes. We're not the cheapest, but you're not gambling $800 on whether a part fits. You're paying for support, verification, and someone who cares if your build goes sideways.

What does your warranty cover?

1 year against manufacturing defects: cracking, warping, paint peeling, hardware failure, fitment issues caused by the part being made wrong. Does NOT cover installation damage (you cracked it bolting it on), road damage (curb rash, rock chips), or normal wear. If it breaks because we made it wrong, we replace it free. If it breaks because you hit a parking block, that's on you. We're fair about it. Send photos and we'll tell you honestly if it's covered.

Shipping

Do you ship overseas?

Yes, we ship all over the world. Shipping costs will apply, and will be added at checkout. We run discounts and promotions all year, so stay tuned for exclusive deals.

How much does shipping cost and when will I see the total?

Depending on where you're located, small parts can ship free. Large parts like bumpers, hoods, and body kits require freight shipping. Uou'll see the exact cost at checkout before you pay. Freight usually runs $150-$300 depending on size and your location. We know it's expensive. We negotiate the best rates we can. If you're ordering multiple large parts, text us. We can sometimes combine shipping and save you money. We're not hiding fees in the final step. What you see at checkout is what you pay.

How long will it take to receive my order?

It depends on where you are. Orders processed here will take 5-7 business days to arrive. Overseas deliveries can take anywhere from 7-16 days. Delivery details will be provided in your confirmation email.

See Why Customers Love K2 Industries