Description
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Unleash the true character of your BMW M3 or M4 with the GCA Performance Valved Sport Exhaust System. Designed specifically for the 2021+ G80 M3, G82 M4 Coupe, and G83 M4 Convertible, this premium cat-back exhaust system delivers an aggressive exhaust note, improved exhaust flow, and enhanced driving excitement while maintaining OEM-like functionality.
Engineered around the legendary S58 3.0L Twin Turbo engine, this exhaust system transforms the driving experience with a deeper tone, sharper acoustics, and improved responsiveness throughout the RPM range. From cold starts and spirited downshifts to full-throttle acceleration, every moment behind the wheel becomes more engaging.
Available in premium T304 stainless steel or ultra-lightweight Grade 5 Titanium (Ti-6Al-4V), the system is designed to reduce back pressure and optimize exhaust flow without sacrificing fitment or drivability. The equal-length mid-pipe design helps create a smoother, more refined exhaust tone while maximizing the unique sound characteristics of the S58 powerplant.
Electronic exhaust valves with an included controller allow you to switch between aggressive and refined sound profiles whenever desired. The system is also compatible with OEM valvetronic functionality, giving you complete control over your exhaust experience.
Built using precision TIG welding and high-quality materials, every component is engineered for durability, performance, and seamless installation. The fully reversible design allows you to return the vehicle to stock configuration at any time without permanent modifications.
Features & Benefits
• Aggressive performance exhaust note
• Available in T304 stainless steel or Grade 5 titanium
• Equal-length mid-pipe design for enhanced sound quality
• Electronic exhaust valves with controller included
• Compatible with OEM valvetronic systems
• Reduced back pressure and improved exhaust flow
• Enhanced throttle response and driving engagement
• Precision TIG welded construction
• Quad exhaust tip configuration included
• Direct bolt-on installation
• Fully reversible with no permanent modifications
• Includes all required installation hardware
Warranty
• 1-Year Warranty Included
Vehicle Fitment
Fits the following BMW models:
• 2021-2026 BMW M3 (G80) 3.0L Twin Turbo S58
• 2021-2026 BMW M4 Coupe (G82) 3.0L Twin Turbo S58
• 2021-2026 BMW M4 Convertible (G83) 3.0L Twin Turbo S58
Specifications
• Brand: GCA Performance
• Product Type: Valved Cat-Back Exhaust System
• Material Options: T304 Stainless Steel or 6AL-4V Grade 5 Titanium
• Exhaust Configuration: Full Cat-Back System
• Mid-Pipe Size: 3.5-Inch Single Equal-Length Mid Pipe
• Exhaust Tips: Quad Tips Included
• Valve System: Electronic Exhaust Valves with Controller
• Welding: Precision TIG Welded Construction
• Installation Type: Direct Bolt-On
• Reversible: Yes
Package Contents
• Full Cat-Back Exhaust System
• Equal-Length Mid Pipe
• Axle-Back Exhaust Section
• Quad Exhaust Tips
• Electronic Valve Controller
• All Necessary Mounting Hardware
Why Upgrade Your M3/M4 Exhaust?
The factory exhaust system limits both the sound and personality of the S58 engine. Upgrading to the GCA Performance Valved Sport Exhaust System unlocks a deeper, more aggressive tone while improving exhaust flow and enhancing the overall driving experience. With premium material options, equal-length design, valved functionality, and OEM-quality fitment, this exhaust system is one of the most rewarding performance and sound upgrades available for the G80 M3 and G82/G83 M4 platform.
