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B58 Racing
Dinan Free Flow Axle-Back Exhaust - 2020-2025 BMW X3M/X4M, photo 1 of 6
Dinan

Dinan Free Flow Axle-Back Exhaust - 2020-2025 BMW X3M/X4M

From$2,599.95 Available

Ships from the brand or distributor, usually in 3–7 business days

Make sure this fits your car

Fits: BMW S58: X3 M (F97), X4 M (F98). Confirm your exact car with us before ordering.

Tips: Select one
1
  • Shipping at real carrier rates
  • 30-day returns on unused parts
  • Fitment help before you buy
Questions about fitment?Email a B58 tech with your VIN, and we'll confirm before you order.

Dinan's axle-back gives the X3 M and X4 M a deeper, louder voice, closer to what you would expect from a V8 M car. The larger pipework lets the exhaust flow more freely, especially through the outer pipes when the valves open.

What you get

  • 76 mm tubing in place of the 70 mm stock pipes.
  • Enlarged exhaust valves that open up the outer pipes for a fuller note.
  • Deep, throaty tone that Dinan compares to a straight-pipe sound with more depth.
  • Choice of tips: Polished or Black.

Brand: Dinan · Part #: D660-0086, D660-0086-BLK

Guides for this part

BMW S58 Mods Guide: M2, M3, M4, X3 M and X4 M Upgrades in Order

On an S58, start with a tune and cooling. These cars make a lot of power stock, and heat is what holds them back on hot days and back-to-back pulls. Next come downpipes and a tune built for them, then fuel: an ethanol an

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