What does the Dinan X5 M High Flow X-Pipe fit?

The Dinan X5 M High Flow X-Pipe fits the LCI F95 BMW X5 M and F96 X6 M (2024-2026) with the S68 4.4L twin-turbo V8. It's a direct bolt-on to the factory mid-pipe mounting points, though fitment is only confirmed with Dinan's Free Flow Axle-Back or the stock rear exhaust section.

What makes the X5 M High Flow X-Pipe different from the factory mid-pipe?

It replaces the factory hydroformed center section and resonator with mandrel-bent 3.25in (83mm) T304 stainless tubing, up from the stock 80mm. Deleting the resonator and evening flow between both banks with the crossover design cuts restriction, adds volume, and gives the S68 V8 a fuller, more aggressive growl.

Is it legal for street use?

Yes. Dinan rates this X-pipe Emission Code 5, meaning it doesn't affect emissions equipment and is legal for emissions-controlled, emissions-exempt, and race-only vehicles alike, including California. It does carry a California Proposition 65 warning label, which is standard for most aftermarket exhaust components sold in the state.

The X-pipe is built from 100% T304 stainless steel with mandrel-bent construction, which keeps the tubing's full diameter through each curve instead of pinching it like factory crush-bends. That preserves flow through the crossover section and holds up to long-term exhaust heat and road corrosion.

Do I need to modify anything to install it?

No cutting or welding is needed when this X-pipe is paired with Dinan's Free Flow Axle-Back exhaust; it bolts to the factory mounting points with the included hardware. If pairing it with a different aftermarket axle-back, confirm connection points first, since fitment with other brands isn't guaranteed.

Do I need other parts to install this X-pipe?

The X-pipe replaces only the mid-section between the catalysts and the rear muffler, so it needs either the stock rear exhaust or a Dinan axle-back downstream to complete the system. It doesn't require any tuning changes, though it pairs well with Dinan's other X5 M/X6 M upgrades.

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Description

Dinan High Flow X-Pipe 3.25in for F95 / F96 BMW X5 M LCI and X6 M LCI

The Dinan X5 M High Flow X-Pipe is a T304 stainless steel mid-pipe upgrade for the F95 BMW X5 M LCI and F96 X6 M LCI and their S68 4.4L twin-turbo V8. It replaces the factory hydroformed center section and resonator with mandrel-bent 3.25in tubing, cutting restriction and evening exhaust flow between both banks for a smoother, fuller V8 tone. TIG-welded construction keeps the build clean and durable for daily driving or track use.

Features

Includes X-pipe crossover made from mandrel-bent tubing for minimum restriction
Deletes the factory resonator between the catalysts and rear muffler for increased volume
83mm (3.25in) tubing replaces the stock 80mm section for freer flow
Crossover design evens exhaust pulses between both banks for a fuller, more even tone
100% T304 stainless steel construction, TIG-welded for durability
Factory-like fitment using the factory mounting points, with mounting hardware included

Specifications

Material: T304 stainless steel
Diameter: 3.25in (83mm), up from the stock 80mm
Type: mandrel-bent high flow X-pipe / mid-pipe
Engine: S68 4.4L twin-turbo V8
Fitment: bolts to factory mounting points; confirmed with Dinan Free Flow Axle-Back or stock rear exhaust

Applications

BMW X5 M: F95 | 2024-2026 | 4.4L Twin-Turbo V8 S63
BMW X6 M: F96 | 2024-2026 | 4.4L Twin-Turbo V8 S63

Notes

Fits the LCI (facelift) F95 X5 M and F96 X6 M

Frequently Asked Questions

What does the Dinan X5 M High Flow X-Pipe fit?
The Dinan X5 M High Flow X-Pipe fits the LCI F95 BMW X5 M and F96 X6 M (2024-2026) with the S68 4.4L twin-turbo V8. It’s a direct bolt-on to the factory mid-pipe mounting points, though fitment is only confirmed with Dinan’s Free Flow Axle-Back or the stock rear exhaust section.
What makes the X5 M High Flow X-Pipe different from the factory mid-pipe?
It replaces the factory hydroformed center section and resonator with mandrel-bent 3.25in (83mm) T304 stainless tubing, up from the stock 80mm. Deleting the resonator and evening flow between both banks with the crossover design cuts restriction, adds volume, and gives the S68 V8 a fuller, more aggressive growl.
Is it legal for street use?
Yes. Dinan rates this X-pipe Emission Code 5, meaning it doesn’t affect emissions equipment and is legal for emissions-controlled, emissions-exempt, and race-only vehicles alike, including California. It does carry a California Proposition 65 warning label, which is standard for most aftermarket exhaust components sold in the state.
What is it made of?
The X-pipe is built from 100% T304 stainless steel with mandrel-bent construction, which keeps the tubing’s full diameter through each curve instead of pinching it like factory crush-bends. That preserves flow through the crossover section and holds up to long-term exhaust heat and road corrosion.
Do I need to modify anything to install it?
No cutting or welding is needed when this X-pipe is paired with Dinan’s Free Flow Axle-Back exhaust; it bolts to the factory mounting points with the included hardware. If pairing it with a different aftermarket axle-back, confirm connection points first, since fitment with other brands isn’t guaranteed.
Do I need other parts to install this X-pipe?
The X-pipe replaces only the mid-section between the catalysts and the rear muffler, so it needs either the stock rear exhaust or a Dinan axle-back downstream to complete the system. It doesn’t require any tuning changes, though it pairs well with Dinan’s other X5 M/X6 M upgrades.

About Dinan

Founded in 1979, Dinan is North America’s leading BMW tuner, developing, manufacturing, and marketing a full line of high-performance products for BMW, MINI, and Mercedes-Benz. Dinan works through a nationwide network of Authorized Dinan Performance Centers, including select BMW dealerships and independent BMW service and performance shops. The company’s warranty program, introduced in 1996 with BMW of North America’s cooperation, matches BMW’s new car warranty and covers Dinan enhancements and the vehicle itself for up to 4 years or 50,000 miles. That coverage lets BMW owners add real performance without risking their factory warranty. Automotive publications have tested Dinan-enhanced BMWs against some of the world’s most exotic sports cars for three decades, and the results consistently hold up. Despite that performance, Dinan BMWs keep the reliability and everyday civility BMW owners expect. The product line spans engine, driveline, and chassis components across the full BMW lineup, covering acceleration, cornering, and stopping power. Every Authorized Dinan Performance Center can help build anything from a single upgrade to a complete Dinan BMW.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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Dinan High Flow X-Pipe 3.25in for F95 / F96 BMW X5 M LCI and X6 M LCI [D660-0103]

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Dinan High Flow X-Pipe 3.25in for F95 / F96 BMW X5 M LCI and X6 M LCI

Features

Specifications

Applications

Notes

Frequently Asked Questions

About Dinan

Reviews