BMW Z4 G29 304 Stainless Steel Valved Catback 2019+
BMW Z4 G29 304 Stainless Steel Valved Catback 2019+ is backordered and will ship as soon as it is back in stock.
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Product Warranty
Product Warranty
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.
Delivery and Shipping
Delivery and Shipping
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.
Happy Driving!
Description
Description
Transform Your BMW Z4 G29 M40i with Premium 304 Stainless Steel Valved Catback Exhaust - Ultimate Performance Design (2019+)
Elevate your Z4's performance with our exclusive valved catback exhaust system. Join thousands of discerning BMW enthusiasts who have unleashed the true potential of their B58-powered roadster with our premium exhaust solution that delivers both refined comfort and exhilarating motorsport sound on demand.
Experience the perfect fusion of sophisticated engineering and exhilarating performance with our premium valved catback exhaust system. Meticulously designed specifically for the BMW Z4 G29 M40i's legendary B58 3.0L turbo inline-six, this system features electronic valve technology that transforms your driving experience - delivering refined, stock-like civility when closed, and unleashing an aggressive, motorsport-inspired soundtrack when open.
Premium Design & Engineering
- Electronic Valve Technology - Intelligent exhaust flow control switches between comfort and sport modes on demand
- Mandrel-Bent Construction - Precision-formed piping ensures maximum flow efficiency and optimal performance
- High-Grade T304 Stainless Steel - Superior corrosion resistance and durability for lasting performance
- OEM-Quality Fitment - Factory-style hangers and connections ensure perfect alignment and hassle-free installation
Dual Personality Performance
- Valves Closed Mode - Refined, near-stock sound profile perfect for daily driving, highway cruising, or early morning starts
- Valves Open Mode - Aggressive, deep tone with pronounced turbo spool, crisp throttle response, and motorsport overrun
- Maximum Flow Design - Optimized piping diameter and smooth bends reduce backpressure for enhanced performance
- Factory Integration - Works seamlessly with OEM sport button or drive mode selection (where equipped)
Vehicle Fitment
| Model | Generation | Body Code | Year | Engine |
|---|---|---|---|---|
| Z4 M40i | 3rd Generation | G29 | 2019+ | B58 3.0L Turbo I6 |
| Z4 sDrive M40i | 3rd Generation | G29 | 2019+ | B58 3.0L Turbo I6 |
Performance Specifications
- Material Construction - Premium T304 stainless steel throughout for maximum durability
- Piping Design - Mandrel-bent tubing maintains consistent diameter for optimal exhaust flow
- Valve System - Electronic vacuum-actuated valves for precise exhaust control
- Performance Gains - Increased horsepower and torque through reduced backpressure and optimized flow
Premium Construction Features
- TIG-Welded Joints - Professional-grade welding ensures leak-free operation and maximum strength
- Corrosion Resistant - T304 stainless steel construction withstands extreme temperatures and elements
- Factory-Style Hangers - OEM mounting points ensure proper fitment without chassis modifications
- Premium Tips - High-quality exhaust tips complete the aggressive rear aesthetic
Package Contents
- Complete Valved Catback Exhaust System (Midpipe to Tips)
Important Installation Notice
Installation Details
- Installation Type: Direct bolt-on replacement catback system
- Skill Level: Advanced - professional installation strongly recommended
- Tools Required: Automotive lift, exhaust tools, torque wrench, and valve wiring connections
- Time Required: Approximately 2-4 hours for complete installation
- Modifications: No cutting or permanent modifications required - direct bolt-on design
Sound & Performance Characteristics
- Balanced Tone Profile - Deep, full-bodied note that enhances the B58's character without drone
- Turbo Enhancement - Pronounced turbo spool and wastegate sounds during acceleration
- Aggressive Overrun - Motorsport-inspired pops and crackles on deceleration (valves open)
- Highway Comfort - Minimal cabin intrusion with valves closed for long-distance cruising
Performance Benefits
- Power Gains - Reduced backpressure unlocks additional horsepower and torque from the B58 engine
- Throttle Response - Improved exhaust scavenging enhances throttle responsiveness
- Weight Reduction - Lighter construction compared to factory exhaust system
- Enhanced Sound - Transforms the B58's exhaust note into an exhilarating soundtrack
Expert Support & Warranty
- Live Expert Assistance - Team of BMW specialists ready to verify compatibility and provide installation guidance
- Quality Assurance - Premium manufacturing standards with rigorous quality control processes
- K2 Industries Quality - Backed by our commitment to performance and customer satisfaction
- Technical Support - Professional assistance available for installation questions and valve operation
Shipping Information
-
Manufacturing + Shipping: 3-5 weeks to manufacture the product. 1-2 weeks for shipping
- Tracking: Full tracking provided with every order
- Freight Shipping: Large exhaust systems ship via freight carrier with signature required
- Secure Packaging: Professional protective packaging ensures safe delivery of complete exhaust system
Our Promise To You
Every valved catback exhaust system is backed by our commitment to excellence and customer satisfaction. Our team of passionate car enthusiasts in South Florida is dedicated to helping you unlock the true potential of your BMW Z4 G29 M40i with premium exhaust solutions that deliver both sophisticated refinement and exhilarating performance that transforms every drive.
Ready to unleash your Z4's potential?
- Verify your vehicle is a 2019+ BMW Z4 G29 M40i with B58 engine
- Consider professional installation for optimal fitment and valve operation
- Choose your shipping preferences at checkout
- Complete your order for priority processing and performance transformation
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
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About K2 Industries
We're a team of passionate car enthusiasts located in South Florida. We are dedicated to assisting you in making your dream build a reality!
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.





