BMS B58 Billet Intake for F chassis BMW 140 240 340 440

BMS B58 Billet Intake for F chassis BMW 140 240 340 440

Marsoni

M251S

$199.99

Get it in 3 business days with 1 day shipping. Friday, May 29

BMS B58 Billet Intake for F chassis BMW 140 240 340 440More Power and Dramatic Sound Improvement This plug and play air intake system unlocks up to 8whp to the wheels from your F chassis B58 BMW engine. In addition to the extra power throttle response, turbo spool, and sound are dramatically improved, finally allowing you to hear your turbo spool up under heavy acceleration. The system is CNC machined from billet aluminum, anodized black for strength and a clean look. Includes a reusable S&B high flow

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We offer a 30-day return/exchange service after receiving.
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Unfortunately I ended up being very disappointed with this purchase, after about two weeks of use, it just stopped performing. Not sure what happened but it just stopped releasing the ball and I don't know why, it had no flexibility left to it. I'm not doing a very good job of trying to explain why it quit working but suffice it to say, it became useless after a couple of weeks. Broke my neighbors dog's heart, lol.

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Reviewed in the United States on November 20, 2025