Sluggish O2 sensors don't just trigger annoying Check Engine Lights; they cause poor fuel economy, rough idling, and can even degrade your expensive catalytic converters over time.
10X Entries Into Our F80 M3 Sweepstakes
ALL SALES FINAL. ITEMS MAY BE DAMAGED OR MISSING COMPONENTS. PLEASE SEE IMAGES BEFORE PURCHASING. Want To Haggle? Give Us A Call Or Chat To Make An Offer On This Product!
Brand:
ES#:
5388522
Mfg#:
140509SD
In Stock
ON SALE!
SAVE 37%
$1321.99
This product was last offered at the strikethrough price on 05-02-2026
Nothing ruins a spirited drive in your European performance machine quite like a sudden loss of exhaust tone or a lingering check engine light on your dash. If your factory exhaust flap has stopped responding, you don’t need to pay dealership premium
2X Entries Into Our F80 M3 Sweepstakes
Complete your vehicle with a sweet exhaust note without the side affects of drone!
2X Entries Into Our F80 M3 Sweepstakes Requires cutting for quad tips. Cutout template for M sport ES#4044062. Cutout template for non M sport E
Brand:
ES#:
4043415
Mfg#:
3010-42042
Ships in 5 Business Days
5% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$1994.99
This product was last offered at the strikethrough price on 09-26-2026
From stock exhaust system repairs to polished stainless steel performance exhaust, we have exhaust pipes, mufflers, resonators, and catalytic converters from the most respected suppliers in the business. Go loud, stay soft, look good with exhaust parts and systems from ECS Tuning.
Lifetime Replacement
