FS: Karbonius E46 M3/E86 ZM4MC CSL (S54) Carbon Airbox - Race

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BIMMERPOST / Classifieds

Asking Price:

Sold

Shipping Costs Included

Location:

✓ Will Ship

Item Interest

Getting ready to sell my Z4MC, so I’ll be listing some of the good stuff here — starting with the Karbonius CSL intake.

This is hands-down one of the most rewarding mods for the S54. The sound is addictive — once those ITBs open up, it absolutely roars. It’s honestly a shame not every S54 owner gets to experience this. Installed in my Z4MC in June of 2024, it has just under over 5000 miles on it.

Bought new from IND Distribution in 2024. There was about an 8-week wait at the time, though I’m not sure what availability looks like now.

I'll knock off $100 for a local sale in Northern Virginia, but will ship.

Included with sale is everything you'll need to install in your M:

• Intake
• OE BMW M3 CSL Filter
• OE BMW M3 CSL IAT Sensor
• Alpha N MAF-to-IAT Conversion Harness
• OE BMW M3 CSL Air Shut-Off Valve
• OE BMW M3 CSL Crankcase Vent Hose
• OEM BMW ITB boots

[COUGAR_UBER]

Hey Robblr, sorry to see you leave the Z4M family. What tune did you run while using this airbox?

[Str8f4c3]

PM sent!

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Originally Posted by COUGAR_UBER

Hey Robblr, sorry to see you leave the Z4M family. What tune did you run while using this airbox?

I was running the Severn Alpha-N tune. Josh was great to work with. I'd highly recommend for the next owner of this airbox.

Sad to go, honestly. I really loved this car, but I've got a '72 911 restoration that requires buckets of money to finish.

I'm not sure which I'll miss more - the roar of an S54 at redline, or air conditioning.

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Sold!