Dinan 18-23 BMW M5 (F90) Free Flow Axleback Exhaust System - Polished Tips

The F90 M5 has impressed users and critics alike with its awe-inspiring power, effortless delivery, and general embodiment of what BMW has always been about - refined performance. Form and function reign supreme from the factory in true German form. On the other hand, other aspects may not be as carefully cultivated. The stock exhaust note on the F90 M5 as an example, while no slouch, is probably best described as having a subdued aggressive note. Dinan believes for such a powerful and impressive car however that the vehicle deserves to be able to bellow a bit louder and more aggressively. The F90 M5 is the alpha on the public roads after all. Dinan's goal is to let the machine sound the part in addition to performing it. With Dinan, there is no reason to sacrifice anything in the process to meet that goal either. Whether that be in the form of drone, civility, appearance or any other aspect.

Additional Information

Stainless Steel - Polished Tips - F90

• 100% 304 stainless steel construction
• Computer controlled exhaust valves are retained and limit noise during low speed driving and open fully during high-load conditions
• Easy bolt-on installation with included mounting hardware
• Enjoyably louder, sportier sound
• Four massive 4" diameter clamp-on, double-walled, polished and laser engraved exhaust tips
• Larger diameter piping for increased flow (83mm vs 80mm)
• More Power: + 6 HP @ 6600 RPM, + 5 LB-FT @ 6600 RPM
• Stock exhaust valve actuators reused and operation of exhaust valve is unchanged so exhaust tone can be adjusted via the M-drive settings
• Twin secondary exhaust valves are a whopping 76mm diameter, making them 30% less restrictive than the OE valves

Important Notice relating to US Domestic Market Trucks & Pickups

Many US-market trucks and pickups are available in multiple cab and bed-length configurations (e.g., Single Cab, Extended Cab, Double/Crew Cab, CrewMax, 5.5ft/6.5ft/8ft beds, etc.). Exhaust system fitment can vary between these chassis versions.

Where available, we list all compatible vehicles, cab types, and bed lengths in the product description. However, depending on your exact configuration, some systems may require optional extension/mid-pipes or minor modification for correct fitment.

Because of these variations, please carefully check your cab configuration and bed length before purchasing. If you are unsure, or if your vehicle has been modified, please reach out to a StreetFX agent.

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information