Grail BMW M3 F80 / M4 F82 / F83 Exhaust

BMW M3 F80 / M4 F82 / F83 (2014–2019)

Pure precision. Deep sound. Unmistakably S55

Description:
Give your BMW M3 or M4 the voice it deserves with our GRAIL cat-back exhaust system, custom-built for the F80, F82 and F83 platforms. Engineered around the powerful twin-turbo S55 engine, this system combines refined German craftsmanship with raw, unfiltered sound.

Constructed from premium 1.4301 (V2A) stainless steel with high wall thickness, the system is designed to minimize drone while delivering a deep, resonant tone under all conditions. The layout includes a single 3.5-inch mid-pipe merging into dual 3-inch axle-back sections – a setup built for smooth flow, durability, and unmistakable turbo character.

At the core of this exhaust are our precision-engineered GRAIL CNC-machined valves, delivering two distinct sound profiles:

• Closed Mode: Quiet and composed for daily driving – powerful yet subtle.
• Open Mode: Full-on performance mode with aggressive note, turbo spooling, and race-inspired tone.

You can choose from two tailpipe finishes to match your style: polished stainless steel or stealth black-coated tips – both crafted for a flush, aggressive look that complements the rear of your M.

Each system is handcrafted in Germany and designed for perfect plug-and-play installation. No cutting, no guesswork – just bolt it on and transform your M.

Key Features:

• 100% cat-back system with 3.5” mid-pipe and dual 3” axle-back pipes
• Premium 1.4301 stainless steel (V2A) with high wall thickness
• Deep, drone-free sound profile thanks to precise flow and material strength
• GRAIL CNC-machined performance valves – made for precision and reliability
• Two selectable modes: quiet or aggressive, based on your drive
• Choice of stainless steel or black-finish tailpipe tips
• Fully handcrafted in Germany
• Plug-and-play installation for F80 / F82 / F83 (2014–2019)

Crafted for the enthusiast who expects more than just noise – this is controlled aggression, perfectly tailored to the S55 platform.