What does the Dinan G80 M3 High Flow Middle Exhaust fit?

The Dinan G80 M3 High Flow Middle Exhaust fits the G80 BMW M3, G82 M4, and G83 M4 Convertible (2021-present) with the S58 twin-turbo inline-six. It is a direct bolt-on to the factory mounting points for the section it replaces.

The Dinan G80 M3 High Flow Middle Exhaust uses mandrel-bent 3 in tubing to cut restriction versus the factory section, improving exhaust flow and letting more sound through. On turbocharged engines this can reduce backpressure for a small power gain.

The Dinan G80 M3 High Flow Middle Exhaust is made from 100% T304 stainless steel and TIG-welded, so it resists corrosion and holds up to exhaust heat. Mandrel bends keep the tubing's full diameter through each curve for smoother flow.

Do I need other parts?

The Dinan G80 M3 High Flow Middle Exhaust replaces the mid-section of the exhaust and pairs with a Dinan axle-back or the factory rear section. Confirm your existing exhaust setup so the connections match before installing.

Is installation difficult?

No. The Dinan G80 M3 High Flow Middle Exhaust is a bolt-on installation using the factory mounting points, with no cutting or welding required. Mounting hardware is included to complete the swap.

Description

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Description

Dinan High Flow Middle Exhaust 3in for G80 BMW M3 and G82 / G83 M4

Dinan G80 M3 exhaust, the high-flow middle section, is a T304 stainless steel mid-pipe for the G80 BMW M3, G82 M4, and G83 M4 Convertible and their S58 twin-turbo inline-six. It replaces the restrictive factory section with mandrel-bent 3″ tubing and an X-pipe crossover to improve exhaust flow and free up sound, deleting the resonators between the secondary catalysts and rear muffler, and it is TIG-welded from 100% 304 stainless for a clean, durable finish. It comes in 5lbs lighter than the stock mid-section and bolts on directly using the factory mounting points with included hardware.

Features

Deletes the resonators between the secondary catalysts and rear muffler for increased volume
5 lbs lighter than the stock mid-section (stock: 22 lbs, Dinan: 17lbs)
Includes an X-pipe crossover made from mandrel-bent tubing for minimum restriction
76mm (3-inch) tubing replaces the stock 70mm (2.75-inch) tubing for free flow
Factory-like fitment with included mounting hardware
100% T304 stainless steel construction
TIG-welded for a clean, durable finish
Smoother, louder, and sportier sound

Applications

BMW M3: G80 | 2021-present | 3.0L Twin-Turbo I6 S58
BMW M4: G82, G83 | 2021-present | 3.0L Twin-Turbo I6 S58

Notes

Deletes the resonators for increased volume. Direct bolt-on to factory mounting points; hardware included.

Frequently Asked Questions

What does the Dinan G80 M3 exhaust fit? The Dinan G80 M3 exhaust, the high-flow middle section, fits the G80 BMW M3, G82 M4, and G83 M4 Convertible from 2021 onward with the S58 twin-turbo inline-six, including the Competition variants. It is a direct bolt-on to the factory mounting points for the section it replaces.
How does the Dinan G80 M3 exhaust help? The middle section replaces the stock 70mm (2.75-inch) tubing with mandrel-bent 76mm (3-inch) tubing and an X-pipe crossover, deleting the resonators between the secondary catalysts and rear muffler to cut restriction and let more sound through. On the twin-turbo S58 this reduces backpressure for a small power gain, delivers a smoother, louder, sportier tone, and comes in 5lbs lighter than stock.
What is the Dinan G80 M3 exhaust made of? The Dinan G80 M3 exhaust is made from 100% T304 stainless steel and is TIG-welded, so it resists corrosion and holds up to exhaust heat. The X-pipe crossover is mandrel-bent for minimum restriction, keeping the tubing’s full 3″ diameter through each curve for smoother flow than the stock piping.
Do I need other parts with the Dinan G80 M3 exhaust? The Dinan G80 M3 exhaust replaces the mid-section and pairs with a Dinan axle-back or the factory rear section. Confirm your existing exhaust setup so the connections match before installing; the section is designed to integrate with the factory rear or a compatible aftermarket rear.
Is the Dinan G80 M3 exhaust difficult to install? No. The Dinan G80 M3 exhaust is a bolt-on installation using the factory mounting points, with no cutting or welding required. Mounting hardware is included to complete the swap, though professional installation is recommended for the best fit and alignment.

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

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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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