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BMW 3/4 Series M3 F80/M4 F82 304 Stainless Valved Catback 2015-2020
$2,099.99
Unit price
/
Unavailable
- Fitment verified for YOUR exact year/model/trim
- Not sure? Ask a Tech (takes 5 min, we confirm before you order)
- Got install questions? Text a tech who's actually installed this part before, even after it arrives
Most orders ship in 3-5 days
K2 Industries | SKU:
K2-051-BMW-125-EXH
*Disclaimer: Please input the exact details of your car to ensure precise fitment. Note that some of the components only fit certain models and engines.
BMW 3/4 Series M3 F80/M4 F82 304 Stainless Valved Catback 2015-2020 is backordered and will ship as soon as it is back in stock.
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Expert Install Support
30-Day Returns
One Year Warranty
Details
Details
Transform Your BMW M3 F80/M4 F82 with Premium 304 Stainless Steel Valved Catback Exhaust System - Dual-Length Performance Design (2015-2020)
Elevate your M3/M4's performance with our exclusive 304 stainless steel valved catback exhaust system. Join thousands of discerning S55 owners who have transformed their vehicles with precision-engineered performance exhaust technology that delivers the perfect balance of aggressive sound and refined control.
✓ 304 Stainless Steel ✓ Electronic Valves ✓ Dual-Length Design ✓ Remote Control
Experience the perfect fusion of race-inspired performance and sophisticated control with our meticulously crafted valved catback exhaust system. Featuring premium 304 stainless steel construction, dual-length midpipe design, and advanced electronic valve technology, this system unleashes the true potential of your S55 twin-turbo engine while providing complete sound customization at your fingertips.
Premium Construction Elements
- 304 Stainless Steel Construction - Premium grade material ensures exceptional corrosion resistance and longevity
- Dual-Length Midpipe Design - Advanced engineering optimizes exhaust flow and eliminates unwanted resonance
- Precision TIG Welding - Expert craftsmanship delivers superior strength and flawless appearance
- Mandrel-Bent Piping - Smooth flow geometry maximizes performance and reduces restriction
Advanced Valve Technology
- Electronic Valve Control - Precision electronic actuators provide instant sound modulation
- Remote Operation - Convenient wireless control allows on-demand sound adjustment
- Dual Sound Modes - Switch between aggressive performance tone and refined daily driving
- Factory Integration - Seamless compatibility with OEM valve functionality and drive modes
Vehicle Fitment
| Model | Generation | Body Code | Year | Engine |
|---|---|---|---|---|
| M3 Sedan | 5th Generation | F80 | 2015-2018 | S55 3.0L Twin-Turbo |
| M4 Coupe | 1st Generation | F82 | 2015-2020 | S55 3.0L Twin-Turbo |
| M4 Convertible | 1st Generation | F83 | 2015-2020 | S55 3.0L Twin-Turbo |
Performance Specifications
- Midpipe Diameter - Dual 2.75" equal-length configuration for optimal flow balance
- Axle-Back Section - 3.5" diameter maximizes exhaust velocity and performance
- H-Pipe Design - Advanced crossover configuration smooths exhaust pulses
- Weight Reduction - Significant weight savings over factory exhaust system
Sound Control Features
- Valves Open Mode - Unrestricted flow delivers aggressive, race-inspired sound
- Valves Closed Mode - Refined tone perfect for daily driving and residential areas
- Quad-Chamber Muffler - Advanced internal design eliminates drone while maintaining performance
- Anti-Rasp Technology - Dual-length design eliminates the common S55 "2K RPM rasp"
Package Contents
- Complete 304 Stainless Steel Catback Exhaust System
- Dual-Length Midpipe with H-Pipe Configuration
- Electronic Valve System with Controllers
- Wireless Remote Control Unit
- Quad Exhaust Tips (Premium Finish)
- Complete Installation Hardware Kit
- Professional Installation Instructions
Important Performance Notice
S55 OPTIMIZATION: This exhaust system is specifically engineered for the S55 twin-turbo engine. The dual-length midpipe design eliminates the notorious "2K RPM rasp" while maximizing performance gains and sound quality.
Installation Details
- Installation Type: Direct bolt-on replacement with factory mounting points
- Skill Level: Advanced - professional installation highly recommended
- Tools Required: Automotive lift, exhaust tools, and electronic connections
- Time Required: Approximately 4-6 hours for complete installation
- Modifications: No cutting or welding required - 100% reversible
Performance Benefits
- Power Enhancement - Improved exhaust flow unlocks additional horsepower and torque
- Throttle Response - Reduced back-pressure delivers sharper acceleration
- Weight Savings - Lightweight construction reduces rear-end mass
- Sound Enhancement - Unleashes the true character of the S55 twin-turbo engine
Premium Features
- Racing Heritage Design - Inspired by motorsport technology and proven on the track
- Drone-Free Operation - Advanced muffler design eliminates highway drone
- All-Weather Durability - 304 stainless steel withstands extreme conditions
- Factory Appearance - Clean, OEM+ styling maintains sophisticated aesthetics
Expert Support & Warranty
- Live Expert Assistance - Team of BMW performance specialists ready to provide technical guidance
- Professional Installation Support - Comprehensive guidance for optimal installation results
- Quality Assurance - Premium manufacturing standards with rigorous testing protocols
- Performance Guarantee - Engineered and tested for maximum S55 optimization
Shipping Information
-
Manufacturing + Shipping: 3-5 weeks to manufacture the product. 1-2 weeks for shipping
- Tracking: Full tracking provided with every order
- International Shipping: Available worldwide with calculated rates at checkout
- Secure Packaging: Professional protective packaging ensures safe delivery of complete system
Our Promise To You
Every 304 stainless steel valved catback exhaust system is engineered for the discerning M3/M4 owner who demands both performance and sophistication. Experience the perfect balance of race-inspired sound and refined daily driving capability, with premium construction quality that honors the legendary S55 twin-turbo engine.
Ready to unleash your S55's potential?
- Verify your vehicle model (F80 M3, F82 M4, or F83 M4 Convertible)
- Consider professional installation for optimal performance and fitment
- Choose your shipping preferences at checkout
- Complete your order for the ultimate M performance transformation
Fitment
Fitment
Our Guarantee
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 & 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.
★★★★★
Victor H.
Pictures don’t do it justice. The ghost out American flag Tesla logo and ghost out American flag Tesla letters look great. Couldn't be more happier. Also great friendly customer service. Would definitely recommend to anyone.
★★★★★
Francesco S.
Fit perfectly i love it
★★★★★
Calvin S.
Looks awesome and build quality is great!
★★★★★
Joshua L. W.
Looks phenomenal and was an easy install!
★★★★★
Mark C.
Looks great carbon fiber red very nice
BMW 3/4 Series M3 F80/M4 F82 304 Stainless Valved Catback 2015-2020
$2,099.99
Unit price
/
Unavailable
What You Get With Every Order
Products Selected to Meet Quality & Fitment Standards we Stand Behind.
Get Help From People Who Actually Understand Builds & Fitment.
Designed to Resist UV Exposure, Wear, and Everyday Use.
Join Thousands of Builders Who
Trust K2
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
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
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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
Perfect fit guaranteed
Perfect fit guaranteedSee Why Customers Love K2 Industries
Frequently Asked Questions
Why Buy from K2 Industries
What makes K2 Industries more than just a parts supplier?
What makes K2 Industries more than just a parts supplier?
We’re a team of USA-based car enthusiasts committed to helping you get your build right the first time. With our deep product knowledge and close relationships with trusted manufacturers, we ensure you receive high-quality parts that perform. We’re here to support you before, during, and after your purchase, providing personalized advice, part compatibility checks, and responsive customer service. When you buy from us, you’re joining a community that cares as much about your car as you do.
How do I know which parts are best for my car and goals?
How do I know which parts are best for my car and goals?
Answer: Our team can provide personalized mod plans to match your performance and style goals. Whether you’re building for speed, aesthetics, or both, we’ll help you select the right parts for your vision. Contact us to discuss your project!
Do You Have Financing Options?
Do You Have Financing Options?
Answer: Yes, we offer flexible financing options to make it easier for you to upgrade your vehicle without paying the full amount upfront. Choose our financing option at checkout to split your purchase into manageable payments, so you can start your build now and pay over time.
Visit our FULL FAQ Page
Visit our FULL FAQ Page
Shipping
Do you ship overseas?
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 long will it take to receive my order?
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.
Other
Any question?
Any question?
You can contact us through our contact page! We will be happy to assist you.
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