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BMW 5 Series M5 F90 304 Stainless Steel Valved Catback 2018-2023
$2,499.99
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:
K2-077-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 5 Series M5 F90 304 Stainless Steel Valved Catback 2018-2023 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 M5 F90 with Premium 304 Stainless Steel Valved Catback Exhaust System - Ultimate Performance Design (2018-2023)
Elevate your M5's performance with our exclusive T304 stainless steel valved catback exhaust system. Join thousands of discerning BMW M5 owners who have unleashed their vehicle's true potential with precision-engineered exhaust technology that delivers exhilarating sound, enhanced performance, and sophisticated valve control for the ultimate driving experience.
✓ T304 Stainless Steel ✓ Electronic Valve Control ✓ Increased Performance ✓ Bolt-On Installation
Experience the pinnacle of exhaust engineering with our premium T304 stainless steel catback system, meticulously designed for the BMW M5 F90's legendary S63 4.4L twin-turbo V8. Featuring advanced electronic valve technology, precision-mandrel bent tubing, and expertly tuned acoustics, this comprehensive exhaust system transforms your M5 with deep, resonant tones and measurable performance gains that amplify the character of BMW's ultimate sports sedan.
Premium Performance Features
- T304 Stainless Steel Construction - Premium-grade materials ensure exceptional durability, corrosion resistance, and longevity
- Electronic Valve Control - Sophisticated valve system provides on-demand sound management and performance optimization
- Precision-Mandrel Bent Tubing - Smooth bends maximize exhaust flow and minimize restriction for optimal performance
- Exhilarating Exhaust Note - Deep, resonant tone commands attention while maintaining refined character at cruising speeds
Advanced Valve Technology
- Dual-Mode Operation - Switch between aggressive open-valve mode for spirited driving and refined closed-valve mode for comfort
- Factory Integration - Works seamlessly with OEM electronic valve controls and driving mode selections
- Intelligent Sound Management - Closed valves route exhaust through muffler for quiet, comfortable cruising; open valves unleash full performance soundtrack
- Dynamic Response - Instant valve actuation responds to throttle input and driving mode changes
Performance Specifications
- Material - High-grade T304 stainless steel for maximum durability and heat resistance
- Tubing Diameter - Dual 3-inch precision-mandrel bent piping for optimal exhaust flow
- Power Gains - Expected increases of 5-15 horsepower with improved torque delivery across RPM range
- Weight Reduction - Lighter than factory exhaust system for improved power-to-weight ratio
Vehicle Fitment
| Model | Generation | Body Code | Year | Engine |
|---|---|---|---|---|
| M5 | 7th Generation | F90 | 2018-2023 | S63 4.4L Twin-Turbo V8 |
| M5 Competition | 7th Generation | F90 | 2018-2023 | S63 4.4L Twin-Turbo V8 |
Sound Characteristics
- Valve Closed Mode - Refined, sophisticated tone perfect for daily driving and residential areas
- Valve Open Mode - Aggressive, race-inspired soundtrack that emphasizes the twin-turbo V8's character
- High-RPM Performance - Exhilarating crescendo at higher engine speeds creates immersive driving experience
- No Drone Design - Carefully tuned to eliminate interior cabin drone at cruising speeds
Package Contents
- Complete T304 Stainless Steel Catback Exhaust System
Important Installation Notice
PROFESSIONAL INSTALLATION RECOMMENDED: While this catback system is designed for direct bolt-on installation using factory mounting points, professional installation by an experienced technician is highly recommended to ensure proper fitment, valve integration, and optimal performance.
Installation Details
- Installation Type: Direct bolt-on replacement utilizing factory mounting points
- Skill Level: Advanced - professional installation strongly recommended
- Tools Required: Automotive lift, exhaust tools, and torque specifications
- Time Required: Approximately 3-4 hours for complete installation
- Compatibility: Bolts directly to OEM or most aftermarket downpipes
Engineering Excellence
- Precision Fitment - Engineered to factory specifications for seamless OEM-quality integration
- Optimized Flow Design - Smooth mandrel bends and X-pipe configuration maximize exhaust velocity
- Heat Management - T304 stainless steel withstands extreme temperatures without degradation
- Corrosion Resistance - Premium materials ensure lasting appearance and performance in all climates
Expert Support & Warranty
- Live Expert Assistance - Team of BMW performance specialists ready to provide technical guidance and installation support
- Quality Assurance - Rigorous quality control processes ensure every system meets exacting standards
- Fitment Guarantee - Engineered for precise OEM-quality fit using factory mounting points
- Performance Commitment - Designed to deliver measurable gains in horsepower, torque, and driving excitement
Shipping Information
-
Manufacturing + Shipping: 3-5 weeks to manufacture the product. 1-2 weeks for shipping
- Freight Shipping: Large exhaust systems ship via freight carrier with tracking information
- International Shipping: Available worldwide with calculated rates at checkout
- Secure Packaging: Professional protective packaging ensures safe delivery of complete exhaust system
Our Promise To You
Every T304 stainless steel valved catback exhaust system is backed by our commitment to excellence and customer satisfaction. Experience the perfect fusion of sophisticated engineering, premium materials, and exhilarating performance that unleashes your BMW M5 F90's true potential while maintaining the versatility to switch between refined comfort and aggressive performance at the touch of a button.
Ready to unleash your M5's potential?
- Verify your vehicle is a 2018-2023 BMW M5 F90 or M5 Competition
- Select your preferred exhaust tip finish (Brushed, Black, or Carbon Fiber)
- Consider professional installation for optimal results
- Complete your order for priority processing and 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 5 Series M5 F90 304 Stainless Steel Valved Catback 2018-2023
$2,499.99
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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