What does the Dinan 550i axle-back exhaust fit?

The Dinan 550i axle-back exhaust fits the F10 BMW 550i (2011-2016) with the N63 4.4L twin-turbo V8. It is a direct bolt-on to the factory mounting points, replacing the rear section of the exhaust for a louder, fuller note.

How much louder is it?

The Dinan 550i axle-back exhaust uses a free-flow design that reduces backpressure through the rear section for a louder, fuller note than the muted factory system, while staying civil during normal cruising.

What finish are the tips?

This version uses black ceramic clamp-on tips. The system is 100% T304 stainless steel, TIG-welded and brush-finished for a clean, corrosion-resistant appearance at the rear of the car.

An axle-back exhaust is chosen mainly for sound and styling. The Dinan 550i axle-back exhaust reduces backpressure through the rear section, which can free up a small amount of power, but the primary benefit is the improved note and appearance.

Is installation difficult?

No. The Dinan 550i axle-back 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.

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Description

Dinan Free Flow Axle-Back Exhaust with Black Tips for F10 BMW 550i

Dinan 550i axle-back black exhaust is a T304 stainless steel free-flow system for the F10 BMW 550i and its N63 4.4L twin-turbo V8. The free-flow rear section reduces backpressure for a louder, fuller, and deeper V8 note than the muted factory setup, capped with quad 3.5″ black ceramic clamp-on tips. TIG-welded and brush-finished throughout.

Features

Quad 3.5″ laser-engraved black ceramic exhaust tips (a polished stainless finish is also available)
Uses the factory brackets and hangers for a factory-like fitment
Drone abatement technologies used to reduce cabin resonance
Up to 10 hp when coupled with engine software
100% T304 stainless steel construction
Enjoyably louder, sportier sound

Applications

BMW 550i: F10 | 2011-2016 | 4.4L Twin-Turbo V8 N63

Notes

A polished-tip version is available as Dinan part number D660-0036

Frequently Asked Questions

What does the Dinan 550i axle-back black exhaust fit? The Dinan 550i axle-back black exhaust fits the F10 BMW 550i (2011-2016) with the N63 4.4L twin-turbo V8. It is a direct bolt-on to the factory mounting points, replacing the rear section of the exhaust for a louder, fuller note.
How much louder is the Dinan 550i axle-back black exhaust? The Dinan 550i axle-back black exhaust uses a free-flow design that reduces backpressure through the rear section, giving a louder, fuller, and deeper note than the muted factory system. It stays civil at a cruise and builds a stronger V8 tone under throttle.
What are the tips made of on the Dinan 550i axle-back black exhaust? The system is 100% T304 stainless steel, TIG-welded and brush-finished, and capped with quad 3.5″ black ceramic clamp-on tips. A polished stainless finish is also available as Dinan part number D660-0036. The construction resists corrosion and gives a clean, uniform appearance at the rear of the 550i.
Does the Dinan 550i axle-back black exhaust add power? An axle-back exhaust is chosen mainly for sound and styling. The reduced backpressure through the rear section frees up a small amount of power on its own, with Dinan citing up to 10 hp when the exhaust is coupled with engine software; the primary benefit is the improved V8 note and appearance.
Is the Dinan 550i axle-back black exhaust difficult to install? No. The Dinan 550i axle-back black 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 on the F10 550i.

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.

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BP Pricing Difference

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