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Horizon Motorsport

HM S68 Midpipe - G90 M5

HM-G90-MP-001

Regular price $989.00
Sale price $989.00 Regular price $1,199.00
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HM S68 Midpipe - G90 M5

$989.00

Description

The HM S68 Midpipe is precision engineered for the 2025+ BMW G90 M5, designed to enhance both sound and performance while maintaining OEM fitment and quality. Constructed from high-grade 304 stainless steel, this system replaces the restrictive factory midsection with a 76 mm (3.0 in) mandrel-bent design that improves exhaust flow, reduces backpressure, and delivers a deeper, sharper tone from the S68 hybrid twin-turbo V8.

A custom-formed heat shield is integrated around the front section where the midpipe connects to the downpipes. This helps protect nearby components and reduce tunnel temperatures, especially during high-performance driving or extended operation in warmer conditions.

Each HM S68 Midpipe is a direct bolt-on replacement using factory-style flanges and hangers, and it includes all necessary hardware for an easy, no-weld installation. All midpipes feature a limited lifetime warranty for the original buyer against manufacturing defects.

Key Features
• 304 stainless steel construction for strength and corrosion resistance
• 76 mm mandrel-bent piping for optimal flow and performance
• Designed to enhance exhaust tone and reduce restriction
• Integrated heat shield near downpipe junction for improved thermal control
• Bolt-on installation with supplied hardware—no cutting or welding required
• Compatible with OEM and most aftermarket rear sections• Engineered specifically for the G90 M5 S68 hybrid V8 platform

Performance and Benefits
• Deeper, more refined exhaust tone with an aggressive character under load
• Improved exhaust scavenging and reduced turbo backpressure
• Lower tunnel temperatures for greater component protection

Production and Shipping
This product is currently made to order with an estimated lead time of approximately 3 weeks. All HM exhaust products ship directly from Orange County, California, with typical delivery within 4–6 business days once shipped.

Not for sale or use on vehicles registered in the state of California.

FITMENT

- G90 M5

- G99 M5 Touring

What's the returns policy?

Return Policy

We understand that sometimes a return or exchange may be necessary, and we're here to help make the process as smooth as possible. To start a return or exchange, please reach out to us via our contact page form or submit a request in your account. It's important to note that the return/exchange process must be initiated within 3 weeks of delivery to be eligible for a refund / exchange. After 3 weeks, unfortunately, we will not be able to accommodate any returns or exchanges. Please note that a 20% restocking fee will be applied to any return once the order has been processed.

It's important to return the item in its original packaging and to package it properly to ensure safe transportation. We highly recommend insuring your return package as we cannot be held liable for any lost or damaged packages during the return shipments. Upon inspection, a refund will be issued, which typically takes 2-4 business days to process. Please note that shipping costs are non-refundable and are the responsibility of the customer unless the customer's order was damaged or incorrect.

Disclaimer for Carbon Fiber Products

We encourage you to test fit your items before making any significant modifications, such as sanding, drilling, or applying adhesive. If you have any concerns about installation, please do not hesitate to contact us for assistance. Please note that once a part (including non-carbon fiber parts) has been installed or modified, it is no longer eligible for a refund or exchange under any circumstances. To put it simply, if a part cannot be returned in the condition it was received in, it cannot be returned to us.

Disclaimer for Suspension Components

Please note that we do not accept returns on suspension components. This includes springs, coilovers, control arms, and any other part that affects the suspension of a vehicle.

How fast is shipping?

Shipping Policy

We understand that receiving your parts quickly is important, so we do our best to ship them out as soon as possible. Most of our carbon fiber and performance parts are shipped via UPS, while smaller items like buttons are shipped via USPS. Horizon Motorsport does not guarantee any type of reimbursement in the event of loss or damage. We may require a signature upon delivery for added security. Shipping fees cover handling, packaging, and carrier charges and are not a direct reflection of the carrier’s standalone rate.

Once you place your order, you'll receive a confirmation email letting you know that we're processing your order. Please give us 1-3 business days for tracking information to update on our website. If it's been 4 days and you haven't received tracking information, please send us an email at sales@horizonmotorsport.com with your order number and address, and we'll assist you promptly.

To ensure safe delivery, we recommend being present during the estimated delivery time. Unfortunately, we've had cases of packages being stolen after delivery, so it's important to take precautions. Please note that once your order is marked as "delivered" on the tracking page, it becomes your responsibility to ensure its safety. If you have any concerns or questions about shipping, please don't hesitate to reach out to us at any time.

Damaged Items

In the unfortunate event that your part is damaged during shipping, please do not dispose of the packaging materials. Doing so could jeopardize your reimbursement for the damage, as we require documentation to file an insurance claim. If the part arrived damaged, do not attempt installation. Signs of attempted installation will void any damage claim and a return will not be accepted.

If you discover damage to your item, please open a claim with Route as soon as possible. Route is our method of shipping protection, and while it is optional, we cannot guarantee any reimbursement for loss or damage. Purchasing shipping protection through Route is highly recommended.