The AWE Track Edition Catback Exhaust for the BMW F8X M3 & M4 (2015–2020) is a precision-engineered, performance-focused catback exhaust system designed to unlock a louder, more aggressive S55 exhaust tone while preserving emissions compliance and avoiding check engine lights. Built from U.S.-sourced .065″ T304L stainless steel with a 3″ CNC mandrel-bent layout and integrated X-pipe, this exhaust enhances airflow, delivers noticeable gains in horsepower and torque, and creates an unmistakable performance soundtrack with rich growl and bark at part- and full-throttle. With quad 102 mm double-walled slash-cut tips in diamond black and AWE’s lifetime warranty, this Track Edition exhaust is ideal for enthusiasts who want a raw, unfiltered voice from their M car without the complexity of a valved system.
Designed specifically for BMW F8X M3 (F80) and BMW F8X M4 (F82/F83) models 2015–2020 equipped with the S55 3.0 L twin-turbo engine.
Catback system that replaces the factory rear muffler section — retains front pipes and catalytic converters for emissions compliance and 50-state legality.
Comes with AWE machined mechanical valve simulators so the factory valve motors remain happy (valve motors see expected resistance).
Known for a “constant open” sound character — louder and more aggressive than valved counterparts.
Due to intensity of sound, returns are not accepted for sound preference reasons.
AWE Track Edition Catback Exhaust assembly with integrated X-pipe and CNC mandrel-bent piping.
Quad 102 mm double-walled, slash-cut diamond black exhaust tips with AWE logo.
AWE mechanical valve simulators for factory valve motor compatibility.
Mounting hardware, gaskets, and installation instructions.
Material: .065″ wall T304L stainless steel for corrosion resistance and strength.
Piping: 3″ CNC mandrel-bent cat-back layout with precision-engineered X-pipe for balanced flow and tone.
Exhaust Tips: 102 mm double-walled, slash-cut tips (diamond black finish).
Gains: Up to +12 hp and +16 ft-lbs torque at the wheels with bolt-on fitment, depending on vehicle and supporting mods.
Weight Savings: System offers significant reduction over OEM catback section (approximately ~22.5 lb lighter).
Installation: Direct bolt-on; no cutting required; retains catalytic converters and factory mounts.
Warranty: AWE Lifetime Exhaust Warranty and No Check Engine Light Guarantee.
Aggressive, unfiltered sound with a constant “valve open” character for spirited driving and track use.
Precision X-pipe design balances tone and flow, unlocking a clean, deep S55 exhaust note.
50-state legal and emissions friendly when installed with factory cat section intact.
Handcrafted in the USA with high-quality 304L stainless for durability and performance.
Mechanical valve simulators included for proper OEM valve motor interaction.
Lifetime warranty and fitment guarantees provide confidence in quality and compatibility.
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