F8X S55 Valved Equal Length Exhaust System

S&H MOTORSPORTS | PERFORMANCE Series

Redefining the S55 Soundtrack and Sound Control

The Performance Series Equal Length Exhaust System for the BMW F80 M3 F82 Coupe, (2014–2019) is a comprehensive, catback replacement designed for the ultimate acoustic and performance upgrade. This system is comprised of two parts: a high-flow Equal Length Mid Pipe and a set of performance mufflers that retain factory valve control.

By balancing the exhaust pulses in the mid-section and replacing the restrictive factory mufflers, this system delivers a cleaner, higher-pitched sound profile, effectively eliminating the common "raspy" or unbalanced tone of the S55 engine.

Key Features and System Components:

• Equal Length (EL) Mid Pipe: This section corrects the S55's uneven firing order sound, smoothing out the acoustics and creating a higher-pitched, more exotic tone, reminiscent of classic European sports cars.

• Valved Mufflers: The included performance mufflers are designed to accept and utilize your OEM electronic exhaust valve motors (motors not included). This preserves factory control over volume, allowing you to switch instantly between a loud, aggressive tone and a quiet, daily-driving sound using your M Drive settings.

• Full Catback Replacement: This kit replaces the entire factory exhaust system from the downpipe back.

• Premium Material: Crafted entirely from 304 Stainless Steel for maximum durability, heat resistance, and corrosion protection.

Acoustic & Performance Transformation:

• Acoustic Correction: Converts the choppy S55 tone into a smoother, more refined, and higher-pitched exhaust note.

• Dynamic Volume: Complete control over volume thanks to the factory valve integration.

• Optimized Flow: The free-flowing design contributes to responsive power delivery across the rev range.

Vehicle Compatibility:

• BMW M3 Sedan: F80 (2014–2018)

• BMW M4 Coupe: F82 (2015–2019)

• Engine: S55 3.0L Twin-Turbo

Note: This kit is a full catback system. Installation requires transferring the existing factory valve motors onto the new performance mufflers. Professional installation is highly recommended.