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B58 Racing
CTS Turbo BMW S58 F97/F98 X3M/X4M Resonator Delete Kit, photo 1 of 1
CTS TurboSKU: B58R-EXH-070

CTS Turbo BMW S58 F97/F98 X3M/X4M Resonator Delete Kit

$299.99 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.

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  • 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.

The X3 M and X4 M carry a factory resonator in the middle of the exhaust that quiets the S58 and adds restriction. CTS Turbo's kit takes out that hydroformed section and puts a stainless X-pipe in its place, for freer flow and a fuller exhaust note.

What you get

  • 70 mm T304 stainless tubing in place of the factory resonator section.
  • Mandrel-bent X-pipe that splits flow evenly to both sets of tips.
  • TIG-welded, back-purged construction.
  • Calm at cruise. CTS says the tone stays subtle at steady speed, with no drone when paired with the factory exhaust.

Brand: CTS Turbo · Part #: CTS-EXH-TP-0026

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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