BMW M3/M4 (F80, F82, F83 including Competition Models) S55 Equal length Midpipe Res

Unlock the true potential of your BMW M3 or M4 with the G-tech Motorsports Equal Length Resonated Midpipe. Designed for the S55 engine platform, this upgrade balances exhaust pulses for smoother power delivery, sharper throttle response, and a deep, aggressive exhaust note that is perfect for both street and track use.

Key Features & Benefits

• Material: T304 stainless steel for maximum strength and corrosion resistance
  
  

• Equal length design: Ensures balanced exhaust pulses for smoother flow
  
  

• Resonated midpipe: Provides a refined tone with reduced drone
  
  

• Mandrel-bent piping: Maintains consistent diameter to reduce backpressure
  
  

• Bolt-on fitment: Direct replacement, no cutting or welding required
  
  

• Performance gains: Improved throttle response, mid-range torque, and overall exhaust efficiency
  
  

Vehicle Compatibility / Fitment

• BMW M3 F80 & F80 Competition (2014–2018)
  
  

• BMW M4 F82 & F82 Competition (2014–2020)
  
  

• BMW M4 F83 Convertible & F83 Competition (2014–2020)
  
  

Technical Specifications

• Material: High-quality T304 stainless steel
  
  

• Finish: Brushed stainless with performance-focused look
  
  

• Piping: Mandrel-bent for smooth, unrestricted airflow
  
  

• Midpipe type: Resonated (RES model)
  
  

Installation Information

• Tools required: Standard hand tools and torque wrench
  
  

• Estimated install time: 1–2 hours
  
  

• Professional installation recommended for best results
  
  

• Direct bolt-on; includes clamps, bolts, washers, and hardware
  
  

Performance Gains / Why It’s Needed

The equal-length design ensures each cylinder’s exhaust pulse travels the same distance, improving flow dynamics and reducing turbulence. This translates to sharper throttle response, improved mid-range torque, and a signature motorsport-inspired sound that opens aggressively under load while remaining refined during normal driving.

What’s Included in the Kit

• Equal length resonated midpipe
  
  

• All required clamps, bolts, and washers for installation
  
  

• Hardware for direct bolt-on fitment
  
  

Warranty & Guarantee

• Covered by manufacturer warranty for defects
  
  

• Returns accepted on unused items in original packaging
  

Perfect for BMW M3/M4 performance enthusiasts seeking S55 upgrades, exhaust enhancement, and throttle response improvement. Pair with G-tech full cat-back exhaust or intake upgrades for maximum performance.

FAQs

Q1: Does this fit the Competition models?
Yes, it fits F80, F82, and F83 Competition variants.

Q2: Will installation require cutting or welding?
No, this midpipe is a direct bolt-on replacement.

Q3: How does the resonated midpipe affect exhaust tone?
It balances an aggressive motorsport sound with a refined daily-driving tone.

Q4: Are there performance gains?
Yes, expect sharper throttle response, increased mid-range torque, and smoother exhaust flow.

Q5: What tools are required for installation?
Basic hand tools and a torque wrench. Professional installation is recommended for optimal results.