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BMW i8 1.5T 304 Stainless Steel Downpipe 2014-2020

$1,399.99 $1,800.00 Save $400.01
  • 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 - Usually ships in 3-5 Days

Select your exact model and see if this part fits

*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.

K2 Industries  |  SKU: K2-102-BMW-125-EXH
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Details

Transform Your BMW i8 1.5T Hybrid with Premium 304 Stainless Steel Downpipe - Performance Enhancement Design (2014-2020)

Elevate your i8's performance with our exclusive 304 stainless steel downpipe engineered specifically for the hybrid sports car platform. Join thousands of discerning BMW enthusiasts who have unlocked their i8's true potential with our premium exhaust solutions that deliver enhanced power, improved throttle response, and an exhilarating sound profile.

✓ 304 Stainless Steel ✓ Performance Optimized ✓ Direct Bolt-On ✓ K2 Industries Quality

Experience the perfect fusion of hybrid efficiency and enhanced performance with our meticulously engineered downpipe system. Crafted from premium 304-grade stainless steel for exceptional durability and corrosion resistance, this performance upgrade features optimized flow design that maximizes exhaust efficiency, reduces backpressure, and unleashes the full potential of your i8's innovative 1.5T hybrid powertrain.

Premium Performance Design
  • Optimized Flow Architecture - Precision-engineered mandrel bends ensure smooth exhaust gas flow and maximum performance
  • Reduced Backpressure - Advanced design minimizes turbo lag and enhances boost response for improved acceleration
  • Enhanced Sound Profile - Deeper, more aggressive exhaust note that complements the i8's hybrid character
  • Performance-Focused Engineering - Every aspect optimized for power gains and throttle response improvement
Premium 304 Stainless Steel Construction
  • Aircraft-Grade Stainless Steel - Premium 304-grade material ensures exceptional durability and longevity
  • Superior Corrosion Resistance - Anti-magnetic properties resist discoloration and environmental degradation
  • Temperature Resilient - Withstands extreme exhaust temperatures without warping or deterioration
  • Lifetime Durability - Premium construction designed to last indefinitely in harsh conditions
Vehicle Fitment
Model Engine Body Style Year Range Powertrain
BMW i8 1.5T (B38) Coupe 2014-2020 Plug-in Hybrid
BMW i8 1.5T (B38) Roadster 2018-2020 Plug-in Hybrid
Performance Benefits
  • Increased Horsepower & Torque - Unlock hidden performance potential with improved exhaust flow efficiency
  • Enhanced Turbo Efficiency - Reduced backpressure allows turbocharger to build boost faster and more efficiently
  • Improved Throttle Response - Noticeably sharper acceleration and more immediate power delivery
  • Extended Turbo Lifespan - Lower exhaust backpressure reduces stress on turbocharger components
Installation Specifications
  • Direct Bolt-On Design - Engineered as OEM replacement with factory mounting points
  • Precision Fitment - Exact specifications ensure perfect alignment and hassle-free installation
  • Enhanced Flex Section - Flexible design simplifies alignment with existing exhaust components
  • Complete Hardware Included - All necessary gaskets and mounting hardware provided
Package Contents
  • 1 Premium 304 Stainless Steel Downpipe Assembly
Important Installation Notice
PROFESSIONAL INSTALLATION RECOMMENDED: Due to the i8's complex hybrid powertrain and exhaust configuration, professional installation is strongly recommended to ensure proper fitment, optimal performance, and system integrity.
Installation Details
  • Installation Type: Direct bolt-on OEM replacement system
  • Skill Level: Advanced - professional installation strongly recommended
  • Tools Required: Professional-grade automotive tools and lift equipment
  • Time Required: Approximately 2-4 hours for complete installation
  • Tuning Recommendation: ECU tuning recommended to maximize performance gains
Technical Advantages
  • Mandrel-Bent Construction - Smooth internal diameter throughout ensures unrestricted exhaust flow
  • Optimized Piping Diameter - Engineered bore size balances power gains with mid-range torque retention
  • Precision TIG Welding - Professional-grade welding ensures leak-free operation and structural integrity
  • Thermal Expansion Design - Flexible sections accommodate thermal expansion without stress or failure
Sound & Performance Enhancement
  • Aggressive Exhaust Note - Deeper, more pronounced sound enhances the driving experience
  • Turbocharged Character - Enhanced turbo spool sounds add excitement to acceleration
  • Refined Tone Quality - Professional sound engineering eliminates drone while enhancing performance notes
  • Hybrid-Optimized Acoustics - Sound profile complements i8's unique hybrid powertrain characteristics
Expert Support & Quality
  • Live Expert Assistance - Team of BMW specialists ready to verify compatibility and provide technical guidance
  • K2 Industries Quality - Premium manufacturing standards with rigorous quality control processes
  • Pre-Installation Inspection - Please inspect all components before installation to ensure quality
  • Professional Support - Technical assistance available for installation and tuning questions
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 precision components
Our Promise To You

Every premium downpipe upgrade 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 your BMW i8's true performance potential with precision-engineered exhaust solutions crafted from premium 304 stainless steel that deliver exceptional power gains, enhanced throttle response, and an exhilarating sound profile.

Ready to unleash your i8's potential?

  1. Verify your vehicle is a 2014-2020 BMW i8 1.5T hybrid (Coupe or Roadster)
  2. Consider professional installation for optimal results and fitment
  3. Plan for ECU tuning to maximize performance gains from exhaust upgrade
  4. Complete your order for priority processing and expert support

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.

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

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 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
GuaranteePerfect fit guaranteed

See Why Customers Love K2 Industries

Frequently Asked Questions

Why Buy from K2 Industries

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?

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?

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

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 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?

You can contact us through our contact page! We will be happy to assist you.