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BMW M3 E90/E92 Axle-Back Exhaust System (2008–2013) – 76mm Bevel Edge Tips | Dyno Proven

$899.99
SKU:
CATBACK-BMWE92-M3-BT
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Model:
E90 | E92 | E93
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Top Speed Pro1 Axle-Back Exhaust System – BMW M3 E90/E92 (2008–2013) | Bevel Edge 76mm Tips 

Unleash the signature V8 sound of your BMW M3 with the Top Speed Pro1 Axle-Back Exhaust System, precision-engineered for E90 Sedans and E92 Coupes (2008–2013). Built with 63mm (2.5") mandrel-bent piping and aggressive 76mm (3") bevel edge tips, this rear section system delivers both weight savings and dyno-proven horsepower gains. 

Constructed from high-grade stainless steel, this axle-back setup provides a clean, sporty tone and improved flow over stock—ideal for enthusiasts seeking refined performance without replacing the entire exhaust system. 


 Key Features: 

  • Axle-Back Rear Section Design – Easy bolt-on upgrade

  • T304 Stainless Steel Construction – Corrosion-resistant and heat-durable

  • Mandrel-Bent 63mm (2.5") Piping – Smooth flow, no restrictions

  • Polished 76mm (3") Bevel Edge Tips – Premium styling and aggressive finish

  • Dyno Tested for Real-World Gains

  • Actual Product and Results Shown 


 Dyno-Proven Performance: 

Tested on an E92 M3 Coupe: 

  • Stock Exhaust: 355.7 HP / 297.5 ft-lbs

  • Top Speed Pro1 Installed:

    • Dyno Run #1: 365.5 HP / 297.0 ft-lbs (▲ +9.8 HP)

    • Dyno Run #2: 364.8 HP / 298.1 ft-lbs (▲ +9.1 HP) 


 Vehicle Fitment: 

  • BMW M3 E90 Sedan (2008–2011)

  • BMW M3 E92 Coupe (2008–2013)

  • BMW M3 E93 Convertible (2008–2013)Requires trimming/removal of rear lower trunk support brace for proper fitment

  • Compatible with Manual and SMG transmissions

  • Designed for the V8 S65 engine 


 ⚠️ Installation Note: 

  • This system is a direct bolt-on for E90 and E92 models.

  • E93 Convertible fitment requires cutting/removing the lower rear trunk support brace.

  • Professional installation recommended for optimal fitment and exhaust alignment. 

❓ Frequently Asked Questions

Will this axle-back fit my BMW M3?

Yes, it fits BMW M3 E90 Sedans and E92 Coupes from 2008–2013. It also fits the E93 Convertible, but requires cutting or removing the lower rear trunk brace for clearance.

What are the tip sizes and pipe dimensions?

The system features 76mm (3") polished bevel edge tips and 63mm (2.5") mandrel-bent piping for optimized flow and performance.

What kind of horsepower gains can I expect?

Dyno testing on an E92 M3 Coupe showed gains of up to +9.8 HP compared to stock. Results may vary depending on supporting mods and vehicle condition.

Is this system loud?

It offers a clean, sporty tone with more volume and throttle response than stock, without excessive drone. It pairs well with stock or aftermarket mid sections.

Do I need to cut or weld anything?

No cutting is needed for E90/E92 models. E93 owners must remove or trim the rear lower trunk brace for proper fitment. Professional installation is recommended.

Is this made of real stainless steel?

Yes. It's constructed from high-quality T304 stainless steel and TIG welded for durability and a clean finish.

Will it work with my stock mid pipe?

Yes. It is compatible with the factory mid section and most aftermarket X-pipes or mid-pipe upgrades for the BMW E9X M3 platform.

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