Bomiz G8x M3/M4 Titanium Valved Exhaust System

Grade 5 Titanium. Pure Sound. No Compromise.

The BOMIZ full titanium exhaust system for the BMW G80 M3 and G82 M4 is built to deliver true performance, tone, and longevity — all without compromise. Constructed from premium aerospace-grade Grade 5 titanium, this system offers unmatched strength-to-weight ratio, corrosion resistance, and durability. Resonators placed before the rear muffler provide a clean, high-pitched tone that enhances the M experience without unwanted cabin noise.

Designed to bolt directly to OEM or aftermarket downpipes, this system is also compatible with the factory X-pipe or axle-back, giving you flexibility with zero fitment headaches.

Unlike competitors using lower-grade materials or cutting corners on weld quality, every BOMIZ titanium system is TIG-welded with precision and backed by a lifetime warranty — because excellence should last.

Specifications

• Full 3" Aerospace-Grade Grade 5 Titanium

• Resonators in Connecting Pipes for Clean, Refined Tone

• TIG Welded with Precision Fitment

• Bolts to OEM or Aftermarket Downpipes

• Compatible with Stock Axle-Back or X-Pipe

• HP and TQ Gains Across the Powerband

What’s Included

• Complete BOMIZ Titanium Exhaust System (Axle-Back and Midpipe)

• OEM BMW Butt Clamps

• Lowered BOMIZ Mid-Brace for Additional Clearance

• All Necessary Hardware & Clamps

• Installation Instructions

Fitment

• BMW G80 M3 (2021+)

• BMW G82 M4 (2021+)

• Compatible with Competition & xDrive Variants

Backed for Life

Every BOMIZ titanium system is covered by a lifetime warranty against manufacturing defects. If it fails due to craftsmanship or material issues — we’ll take care of it.

Notice – Competition Use Only

This product is intended for off-road/competition use only.

WARNING: Please note that certain aftermarket exhaust systems may not comply with applicable US (including California) laws and regulations, and may therefore be prohibited for use on highways or roads, or on roads or vehicles otherwise subject to emissions control requirements. California prohibits the use of any aftermarket exhaust system that modifies, removes or replaces original equipment catalysts, unless CARB has issued an Executive Order as to such part or system.

BOMIZ parts or exhaust systems/components used or intended for use on “racing vehicles” (i.e. a competition vehicle used exclusively for competition on closed-course circuits) do not require an exemption or Executive Order from CARB to be sold in California. However, such parts are prohibited from use on California public highways or roads, even if occasionally used “off-road.”