BMW F87 M2 Competition Equal Length Valved Sport Exhaust System
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Overview
The S55 engine in the M2 Competition and M2 CS delivers exceptional performance, but its stock exhaust note leaves much to be desired—buzzy, raspy, and lacking the refined aggression enthusiasts expect. The Valvetronic Designs Equal-Length Valved Cat-Back Exhaust System solves this problem, unlocking the hidden character of the S55 while preserving the excitement and volume owners crave.
This system combines a 2.75-inch equal-length mid-section with an H-pipe and a 3.5-inch axle-back, delivering a smoother, richer tone across the rev range. With valves open, exhaust gases exit freely through the passenger-side tips for maximum presence. With valves closed, gases are routed through our quad-chamber muffler and driver-side tips, offering a quieter, more refined sound—perfect for daily driving.
Direct bolt-on fitment means installation is seamless, mounting to factory points without permanent modifications.
Why It Works
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Equal-Length Mid-Section: Balances exhaust pulses for a smoother, more pleasant tone without sacrificing aggression.
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H-Pipe Integration: Improves exhaust scavenging for a fuller, richer sound.
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Dual Sound Modes: Enjoy raw, motorsport tone (open) or comfortable refinement (closed).
Sound & Control
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Valves Open: Aggressive, free-flowing tone with improved top-end character.
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Valves Closed: Stock-like volume and tone for discreet driving.
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Electronic Valve Control: Includes remote controller; OEM valve integration optional.
Construction & Options
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Materials: T304 stainless steel or Grade 5 titanium.
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Weight Savings: –20.9 lb (Stainless) / –47.3 lb (Titanium) compared to OEM.
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Craftsmanship: Precision TIG welds, fully mandrel-bent tubing.
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Tips: Premium tips available in multiple finishes to match your style.
Fitment
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2018+ BMW F87 M2 Competition
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2020 BMW M2 CS
Installation Notes
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Direct bolt-on installation to OEM mounting points.
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100% reversible—return to stock at any time.
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Note for S55 Owners: On race or free-flow downpipes, “2k rpm rasp” may be present during low-rpm shifts. For the most refined tone, we recommend high-flow (200 cell) catalytic converters.
What’s Included
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2.75" equal-length H-pipe mid-section
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3.5" axle-back with quad-chamber muffler
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Electronic valve system with controller (OEM integration optional)
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All required clamps and hardware
Specifications
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Mid-Section Diameter: 2.75" equal-length with H-pipe
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Axle-Back Diameter: 3.5"
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Material: T304 stainless steel or Grade 5 titanium
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Valves: Electronic, rapid open/close
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Weight Savings: –20.9 lb (Stainless) / –47.3 lb (Titanium) vs. OEM
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Design: Quad-chamber muffler for refined closed-valve tone
- Brushed T304 stainless steel
- 2.75-inch equal-length mid-section with an H-pipe and a 3.5-inch axle-back
- Electronic Valve Control: Includes remote controller; OEM valve integration optional.
- 20.9lbs lighter than the OEM system
- Paired With Valvetronic Designs Brushed Single Wall Tips
Warranty Coverage
All products manufactured by Valvetronic Designs are guaranteed to be free from manufacturing defects in materials and workmanship at the time of sale. A manufacturing defect is defined as any characteristic of the product that arises during the manufacturing process which impairs its usability for the purposes for which it was designed and manufactured.
Products are guaranteed to fit and function as designed on their intended vehicle application, provided the vehicle has not been modified or incurred structural damage. Sound or tone is not a warrantable or returnable issue, as exhaust sound is subjective and not considered a defect.
Warranty Periods
- 304 stainless steel and titanium exhaust tubes and welds carry a Lifetime of Ownership limited warranty against defects in workmanship or material, including penetrating rust.
- Mufflers and resonators carry a 3-year limited warranty against defects in workmanship or material, including penetrating rust.
- Catalysts are warranted to conform to EPA emission testing and OBDII compatibility criteria for 25,000 miles from the date of installation, whichever occurs first.
- Catalytic converter external shells, including end pipes, are warranted against corrosion and defective welding for 5 years or 50,000 miles from the date of installation, whichever occurs first.
- Vacuum pots, electronic remotes, and mechanical valves are covered by a 1-year limited warranty.
- Electronics, including 12V vacuum pumps, RF modules, and controllers, are covered by a 1-year limited warranty.
- Tip finish is covered by a 1-year limited warranty.
Warranty Terms
- Warranty coverage begins on the purchase date and applies only to the original purchaser.
- This warranty is not transferable or assignable at any time.
- Discoloration caused by heat, salt, brine, or other road treatments is not covered.
- Tip finish discoloration or damage caused by heat, chemicals, lack of maintenance, road salt, brine, other road treatments, road debris, or misuse is not covered.
FULL WARRANTY POLICY CAN BE FOUND HERE