BMW 2/3/4 Series G42 G20/G21 G23 Carbon Fiber Dual Muffler Tips (2019+)

Carbon Fiber Dual Y-Pipe Exhaust Tips for BMW M240i M340i M440i

Pair of carbon fiber dual-outlet Y-pipe exhaust tip assemblies for BMW G-series B58 cars. Each assembly replaces one factory single exhaust tip — remove the stock tip, clamp the Y-pipe onto the exposed exhaust pipe, and you've got two carbon fiber outlets per side. Install both for the full quad-exit M-car look without touching the exhaust system.

How It Works

Your M240i, M340i, or M440i comes from the factory with one round exhaust tip per side. This Y-pipe assembly removes and replaces that factory tip. The single inlet clamps onto the raw exhaust pipe underneath, then splits internally into two individual carbon fiber outlets. One assembly per side, two assemblies for the full quad look. This is a replacement, not a cover — the factory tips come off.

Available Finishes

• Carbon Fiber w/ Silver Stainless Steel — polished stainless inner barrels, classic look
• Carbon Fiber w/ Black Stainless Steel — blacked out inner barrels, stealth
• Carbon Fiber w/ Blue Stainless Steel — blue titanium edge with gold inner barrel
• Forged Carbon Fiber w/ Silver Stainless Steel — forged carbon pattern with polished inner
• Forged Carbon Fiber w/ Black Stainless Steel — forged carbon with blacked out inner
• Forged Carbon Fiber w/ Blue Stainless Steel — forged carbon with blue/gold inner

Dimensions

• Inlet Diameter: 64mm (clamps onto factory exhaust pipe)
• Outlet: Dual outlets per assembly (4 total outlets with both assemblies installed)
• Attachment: Stainless steel hose clamp on single inlet

Fitment

• 2022+ BMW M240i / M240i xDrive (G42)
• 2019+ BMW M340i / M340i xDrive Sedan (G20)
• 2019+ BMW M340i Touring (G21)
• 2021+ BMW M440i Coupe (G22)
• 2021+ BMW M440i Convertible (G23)
• 2021+ BMW M440i Gran Coupe (G26)

Note: This product fits BMW G-series B58 models with single round factory exhaust tips. It does not fit G80 M3, G82 M4, or G87 M2 — those cars already have quad single outlets from the factory. If you're looking for replacement tips for M cars, see our single tip listings.

Build

• Outer Shell: Real carbon fiber with gloss clear coat and visible twill weave (or forged carbon pattern depending on variant)
• Inner Core: 304 stainless steel
• Y-Pipe: Stainless steel internal splitter
• Heat Resistance: Rated for exhaust temperatures
• UV Protection: Clear coat resists fading

What's Included

• 2x Carbon fiber dual-outlet Y-pipe assemblies (one per side — complete pair)
• 2x Stainless steel hose clamps (pre-installed on each assembly)

Installation

Let the exhaust cool completely. Remove the factory exhaust tip on each side — most pull off with a twist or are held by a small clamp. Slide the Y-pipe assembly onto the exposed exhaust pipe until seated, position the dual outlets in the bumper cutout, and tighten the hose clamp with a standard wrench or socket. Repeat on the other side. No welding, no cutting, no exhaust system modification. 30 minutes total for both sides.

Why This Over a Full Exhaust

A full aftermarket quad-tip exhaust system for the B58 runs $1,500–3,000+. These Y-pipe assemblies give you the same quad-exit visual impact for a fraction of the cost and install in your driveway in half an hour. If you want the M3/M4 quad exhaust look on your M340i or M240i without the M3/M4 exhaust price, this is the fastest way to get there.