BMW M3/M4 G8X Valved Catback Exhaust System

Applications: 2021+ BMW M3 (G80) / M4 (G82/G83)

Unleash the full potential of your G8X platform with Momentum Motorsports’ precision-engineered catback exhaust system. Built to deliver maximum performance, aggressive tone, and OEM valve integration, this system transforms your driving experience while retaining everyday usability.

Available in ultra-lightweight T5 grade titanium or premium T304 stainless steel, both variants are designed for enthusiasts who demand the perfect balance between raw motorsport sound and refined street comfort.

Key Features:

OEM Valve Integration – Seamlessly connects to factory valve controls for quiet or aggressive modes at your command
Precision Mandrel Bends – Optimized flow for horsepower and torque gains across the powerbandBMW G83 M4 Performance Parts
Aggressive Tone – Deep, exotic exhaust note with signature Momentum Motorsports sound profile
Bolt-On Installation – Direct fit, no cutting or permanent modifications required
Premium Construction – Available in:
- T5 Grade Titanium – Ultra-lightweight, race-inspired finish with distinctive blue/purple heat coloration
- T304 Stainless Steel – Heavy-duty, corrosion-resistant durability with polished finish
Quad Tips – Offered in carbon fiber, titanium burnt, or black finishes

Options:

Titanium (T5 Grade) Catback – Built to order, ETA ~3–4 weeks
Stainless Steel (T304) Catback – Built to order, ETA ~3–4 weeks

Disclaimers:

For off-road / race use only
Professional installation recommended

To maintain the beauty and integrity of your purchase, we recommend treating it with care. Simple maintenance practices, such as gentle washing and proper storage, can effectively preserve the longevity of your favorites. We encourage you to refer to the care instructions included with each item, designed to help you keep your purchase in top condition.

We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible. Need to return something? Just let us know.

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Each item is designed to blend harmoniously with your living space while adding a unique touch. We aspire to bring balance and enrichment to everyday life.